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Last update: 2013-07-02

Natchez - Stickball

2013-07-02
Length: 2s

Imagine a combination of lacrosse, rugby, football and wrestling with a field as long as a mile!…

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Natchez - Sacred Fire

2013-07-01
Length: 2s

We've all heard the expression "keep the home fires burning". For the Natchez Indians, it was a a sacred duty.…

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Science Diary: Okefenokee - Sandhill Monogamy

2013-06-28
Length: 2s

Young Sandhill Cranes are all for group dates, but when it's time to get serious, these giant birds commit to one partner.…

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Medicinal Weeds - Bioactive

2013-06-27
Length: 2s

Farmers and gardeners have been fighting weeds since time immemorial. Now it may time for the weeds to fight for us.…

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Medicinal Weeds - Overlooked Resource

2013-06-26
Length: 2s

Common pokeweed is being studied as a potential remedy for HIV.…

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Medicinal Weeds - Living Pharmacy

2013-06-25
Length: 2s

It's the world largest pharmacy and it may be no further than your back yard.…

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Earth's Magnetic Field

2013-06-24
Length: 2s

The earth's magnetic field is weakening and the poles are changing locating and - every 780,000 years or so, flipping!…

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Medicinal Weeds - In Praise Of

2013-06-21
Length: 2s

You'd be surprised to learn how many medicinal plants are considered to be "weeds".…

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Ospreys: Raising a Family

2013-06-20
Length: 2s

For a special pair of ospreys, "Virginia Is For Lovers".…

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Science Diary: Acoustical Ecology - Loons

2013-06-19
Length: 2s

Development and disturbance can silence the beautiful call of the common loon. …

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Science Diary: Long Leaf Pine - RCW

2013-06-18
Length: 2s

Restoration of the Long Leaf Pine ecosystem at Okefenokee National Wildlife Refuge is central to the survival of an endangered woodpecker. …

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Solar Warming

2013-06-17
Length: 2s

Life on earth has a billion year window until things heat up quite a bit.…

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Science Diary: Long Leaf Pine - Restoring

2013-06-14
Length: 2s

Forestry experts at the Okefenokee National Wildlife Refuge are working to restore Long Leaf Pine, a species that once ranged from Virginia to Texas.…

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Science Diary: Okefenokee - Peat

2013-06-13
Length: 2s

Think of a swamp, and you might picture mud and muck. But Okefenokee rests on a spongy foundation of peat.…

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Natchez - Oral History

2013-06-12
Length: 2s

The Principal Chief of the Natchez offers a unique perspective of his people's cultural heritage.…

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Science Diaries: Okefenokee - Living Landscape

2013-06-11
Length: 2s

Cycles of growth and wildfires keep Okefenokee swamp in an eternal state of flux.…

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Terraforming

2013-06-10
Length: 2s

It may work on Star Trek, but in real life Mar's thin atmosphere will be writing the script.…

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Science Diaries: Okefenokee - Standing Up to Bears

2013-06-07
Length: 2s

What hisses at bears to defend its nest eggs? Hint: it's bigger than a robin.…

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17 Year Cicadas: Call

2013-06-06
Length: 2s

Is that the sound of an airplane? An alien spaceship? The calls of the cicadas are impressive.…

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17 Year Cicadas: Mating

2013-06-05
Length: 2s

With cicadas, it's how you sound that matters to the females.…

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17 Year Cicadas: Emerge

2013-06-04
Length: 2s

How do billions of cicada nymphs know how to emerge simultaneously?…

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Infinite Universe

2013-06-03
Length: 2s

According to recent findings, the universe is flat and infinite. and the "Big Bang" may not have been all that big.…

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Science Diary Healthy Ocean - What's in a Can of Tuna?

2013-05-31
Length: 2s

What's the biological impact of eating a tuna fish sandwich? …

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People of the Corn

2013-05-30
Length: 2s

For the indigenous people of Chiapas, Mexico, the corn crop embodies their hearts and souls.…

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Caves - Mars Connection

2013-05-29
Length: 2s

Ancient salt water caves harbor ecosystems similar to what life on Mars might have once been like.…

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Astrobiology - UV Rays

2013-05-28
Length: 2s

The sun's ultraviolet radiation can be harmful, but it's been an important force in the evolution of life on Earth.…

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Cosmic Radiation

2013-05-27
Length: 2s

Every second, a trillion atomic particles pass through every square inch of our bodies - is it all harmless?…

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Science Diary: Healthy Ocean - Update

2013-05-24
Length: 2s

Some fish species are in hot water, ecologically speaking, but as consumers we can help turn the tide.…

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Corn - Monoculture

2013-05-23
Length: 2s

Fewer varieties of corn threatens the heritage of a Mesoamerican culture.…

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Science Diary Bears - Melatonin

2013-05-22
Length: 2s

Melatonin regulates the sleep-wake cycle for humans and other animals. Strangely, bears who are masters of hibernation, seem to produce very little melatonin.…

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Science Diary: Bears - Overview

2013-05-21
Length: 2s

What biological mechanisms tell a bear when it's time to hunker down for the winter and awaken in the spring?…

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Will We Colonize Mars?

2013-05-20
Length: 2s

The Apollo astronauts reported seeing strange flashes of light, a clue that high levels of radiation could effect futue space flight and colonies.…

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Caves - Diving

2013-05-17
Length: 2s

Scientists investigating underwater caves must brave dangerous conditions.…

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KSC Sports on Mars - Cleanroom

2013-05-16
Length: 2s

Before stepping inside the lab where NASA's Mars rovers are built, you'll need to put on a 'bunny suit' and jump into the air shower.…

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Spirit Stuck

2013-05-15
Length: 2s

At NASA's Jet Propulsion Laboratory, engineers are testing a rover in a simulated sand pit, in hopes of freeing Spirit - a rover that's been stuck in a real sand pit on Mars.…

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Astrobiology - Europa

2013-05-14
Length: 2s

One of Jupiter's moons may have a liquid ocean, and NASA hopes to send "hydrobots" there to explore for life.…

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Is there Water on Mars?

2013-05-13
Length: 2s

There's plenty of evidence that Mars once had water, but you won't find it on the surface of the Red Planet.…

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Caves - Ancient Life

2013-05-10
Length: 2s

Tiny creatures found in salt water caves are giving scientists clues about an ancient super-continent.…

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Astrobiology - Microbe Siesta

2013-05-09
Length: 2s

At a NASA lab in California, scientists are exploring outer space by looking through microscopes.…

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Caves - Living Fossils

2013-05-08
Length: 2s

While exploring underwater caves, divers made a startling discovery -- primitive animals whose ancestors have been swimming in these waters for millennia.…

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Astrobiology - Genesis

2013-05-07
Length: 2s

The first life forms to arrive on Earth may have "hitchhiked" here on a meteor from Mars.…

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Is There Life on Mars?

2013-05-06
Length: 2s

Could a meteorite found in Antarctica be proof of life on Mars?…

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Greek Orthodox Easter - Conquering Death

2013-05-03
Length: 2s

This week, Greeks around the world celebrate one of their most important holidays of the year - Orthodox Easter. …

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Greek Orthodox Easter - Bringing Light

2013-05-02
Length: 2s

Beautiful hymns mark the celebration of Easter at the first Greek Orthodox Church in the Americas.…

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Greek Orthodox Easter - Touchstone to a Culture

2013-05-01
Length: 2s

For Greeks throughout the world, Easter Sunday is the most important holiday of the year.…

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Greek Orthodox Easter

2013-04-30
Length: 2s

In the Eastern Orthodox tradition, this is Holy Week, culminating in Easter Sunday.…

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Return of the Wood Thrush

2013-04-29
Length: 2s

The annual return of the wood thrush holds a special meaning for some Pulse of the Planet listeners in upstate New York.…

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Kincentric Ecology - Yumari

2013-04-26
Length: 2s

The Raramuri people of Mexico honor their kinship to the earth through song and dance.…

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Kincentric Ecology - Today

2013-04-25
Length: 2s

The culture of the Raramuri people is a model for a more sustainable way of life in our modern industrialized world.…

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Kincentric Ecology - Breath

2013-04-24
Length: 2s

All of nature shares the same breath, so believe the Raramuri peoples of Mexico.…

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Kincentric Ecology - Language

2013-04-23
Length: 2s

The language of the Raramuri people is interwoven with the elements of nature.…

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Kincentric Ecology - Family

2013-04-22
Length: 2s

All of nature is kindred to the people of the Raramuri culture in Mexico.…

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Appalachian Spring - Poke and Ramps

2013-04-19
Length: 2s

Springtime brings the culinary delight of wild ramps to this Appalachian community.…

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Appalachian Spring - Plant Pharmacy

2013-04-18
Length: 2s

In rural Appalachia, if you need to get to the drug store for something ailing you, the remedy might be found growing outside your door.…

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Carpenter Bees - Sneaky

2013-04-17
Length: 2s

Some female carpenter bees have been known to engage in artifice and deception.…

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Carpenter Bees - Social

2013-04-16
Length: 2s

Carpenter bees are among the more solitary bees, sometimes living one to a nest. …

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Carpenter Bees - Nest

2013-04-15
Length: 2s

Bees are resourceful multi-talented insects, and some are skilled carpenters.…

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Songkran - Thai New Year

2013-04-12
Length: 2s

It's the hottest time of the year in Thailand, and the traditional Thai New Year's celebration offers a proven remedy for the heat.…

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In Praise of Dungbeetles

2013-04-11
Length: 2s

Dung beetles of the Amazon bring new meaning to the word "recycling".…

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Storks - Homing

2013-04-10
Length: 2s

Pairs of white storks amaze Hungarians by returning year after year to nest in the exact same spot.…

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Storks - Voices

2013-04-09
Length: 2s

Baby storks have a cry remarkably like human babies, but adult storks clatter their bills instead of calling. …

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Storks - Legend

2013-04-08
Length: 2s

The white stork is a revered creature in Hungary, a central figure in fable and folklore. …

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Cherry Blossom Festival - Old and New

2013-04-05
Length: 2s

In the United States, the annual Cherry Blossom festival has come to include many traditional and modern Japanese art forms.…

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Butter - Simple Samples

2013-04-04
Length: 2s

Air pollution monitoring is nothing new, but now scientists are turning to a new source of data: dairy cows.…

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Butter - Think Global

2013-04-03
Length: 2s

Scientists are analyzing butter to better understand pollutants found in the grass that cows feed upon.…

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Butter - Monitoring Pollutants

2013-04-02
Length: 2s

Scientists have hit upon a cheap and effective pollution monitoring tool - butter.…

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Butter - Persistent Pollutants

2013-04-01
Length: 2s

Just because a pollutant gets banned, it doesn't mean it has gone away. In fact, detectable traces of it might be in your refrigerator.…

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Phagwah - Parade

2013-03-29
Length: 2s

In Queens, a festival takes place at the time of the full moon every March. Participants celebrate with "call and response" style singing, and the playing of indigenous drums and cymbals.…

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Phagwah - Powder

2013-03-28
Length: 2s

In an Indo-Caribbean community an ancient festival of spring is celebrated with colored baby powder.…

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Phagwah - Meaning

2013-03-27
Length: 2s

The most joyful festival of the Indo-Caribbean culture is in early spring. Phagwah is a celebration of the rebirth of nature and the spirit of young love.…

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Snake River Birds of Prey - History

2013-03-26
Length: 2s

Raptor populations such as the hawk and prairie falcon, can directly indicate the health of our earthly environment.…

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Snake River Birds of Prey - Prairie Falcons

2013-03-25
Length: 2s

Prairie Falcons soar to exhilarating heights along eighty-two miles of river canyon in Idaho.…

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Noruz - Triumph of Tradition

2013-03-22
Length: 2s

Although the government of Iran tried to suppress it, the venerable holiday of Noruz continues to be one of that nation's most popular celebrations.…

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Noruz

2013-03-21
Length: 2s

The first day of spring marks the start of an ancient holiday. …

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Noruz - Customs

2013-03-20
Length: 2s

Noruz means "new day" and it's celebrated with new clothes, gift-giving and bonfires.…

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Early Spring - Marmot's Choice

2013-03-19
Length: 2s

Marmots risk starvation because of misleading cues that spring has arrived in the Rocky Mountains.…

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Early Spring - Unexpected Conditions

2013-03-18
Length: 2s

Warming weather and increased snowfall send mixed signals to migrating species.…

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Early Spring - Harbingers

2013-03-15
Length: 2s

A broad range of species of plants are blooming up to 46 days earlier now than they did three decades ago. The reason, biologists say, is global climate change.…

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Dark Skies - Asteroid Defense

2013-03-14
Length: 2s

Astronomers are scouring the skies for rogue asteroids headed our way. They say the job is made more difficult by light pollution.…

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Dark Skies - Turn Out the Lights

2013-03-13
Length: 2s

Astronomers battling light pollution are working with local governments to reduce the amount of stray light emitted from houses, parking lots, and street lights.…

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Star Lore - Comets

2013-03-12
Length: 2s

For thousands of years comets have been looked upon as dire omens for the future, but these celestial phenomenon are actually messages of the past. …

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Nanoparticles - Ocean Fertilization

2013-03-11
Length: 2s

Can "fertilizing" our oceans help stave off climate change? …

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Science Diary: How Toxins Move - Down the River

2013-03-08
Length: 2s

Science Diarist Michael Hochella explains how waterborne toxins move with unexpected swiftness.…

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Science Diary: How Toxins Move - Found It!

2013-03-07
Length: 2s

Science Diarist Michael Hochella captures an image of an elusive nanoparticle. …

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Science Diary: How Toxins Move - Headwaters

2013-03-06
Length: 2s

Geochemist Michael Hochella is ankle-deep and collecting samples in the Clark Fork River's headwaters.…

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Science Diary: How Toxins Move - Hours in the Library

2013-03-05
Length: 2s

Before scientists head into the field, they hit the stacks. …

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Science Diary: How Toxins Move - Clark Fork River

2013-03-04
Length: 2s

Science Diarist Michael Hochella is on the trail of an elusive nanoparticle. …

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Skating Canal - Winter Beauty

2013-03-01
Length: 2s

The Rideau Canal in Ottawa offers skating enthusiasts miles to glide while enjoying the beauty of winter.…

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Skating Canal - Winter Tradition

2013-02-28
Length: 2s

A skating canal in Ontario has become a national symbol of winter in Canada.…

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Science Diary: Glaciers - Ice Tunnel

2013-02-27
Length: 2s

Melting glaciers reveal hidden tunnels within. …

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Science Diary: Glaciers - Breaking Up

2013-02-26
Length: 2s

A loud splash catches the attention of researchers atop a glacier. …

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Science Diary: Glaciers - Movement

2013-02-25
Length: 2s

If you think that glaciers are just quiet, white masses of ice - well, you're wrong!…

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Melting Polar Ice Cap - Future

2013-02-22
Length: 2s

The North Pole is melting, and scientists tell us it will effect everything from polar bears to international politics.…

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Melting Polar Ice Cap - Intro

2013-02-21
Length: 2s

The Arctic icecap appears to be melting, and some scientists say that within a century, the North Pole will be an open sea during the summer months.…

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Tully Ice Harvest - History

2013-02-20
Length: 2s

These days, if you want ice, you just go to the freezer and get it. But some folks remember when ice was delivered door to door in huge blocks. …

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Tully Ice Harvest - Cutting

2013-02-19
Length: 2s

At an annual festival in upstate New York, they cut blocks of ice out of a frozen lake and pack them in sawdust. In the summer, they'll use the ice to make homemade ice cream.…

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Tully Ice Harvest - Prepare

2013-02-18
Length: 2s

Every year at this time, folks in Tully, New York, harvest ice out of a frozen lake the old-fashioned way, with horsepower and antique tools.…

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Cajun Mardi Gras - The Song

2013-02-15
Length: 2s

In Basile, LA, when a band of masked Mardi Gras revelers comes to your door, here's the song they'll likely be singing.…

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Cajun Mardi Gras - Tickling

2013-02-14
Length: 2s

There are many ways to celebrate Mardi Gras. In the rural Cajun communities of south Louisiana, it's organized mayhem.…

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Cajun Mardi Gras - Elton Run

2013-02-13
Length: 2s

Most of us know about Mardi Gras from the famous festivities in New Orleans. But in rural Louisiana , Cajuns celebrate the holiday in a style all their own.…

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Cajun Mardi Gras - In Disguise

2013-02-12
Length: 2s

As Cajuns in Louisiana celebrate Mardi Gras this week, revelers disguise themselves and beg for food and money from their neighbors, to support a communal gumbo.…

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Cajun Mardi Gras - Feast Before Feast

2013-02-11
Length: 2s

Mardi Gras is a holiday with its roots in ancient European traditions. There are good reasons why it happens at this time of year.…

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Chinese New Year in Malaysia

2013-02-08
Length: 2s

In Malaysia, the Chinese New Year celebration is a time for dressing in new clothes, giving gifts to family members and acting on one's very best behavior.…

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Cajun Mardi Gras - Biggest Day

2013-02-07
Length: 2s

When dozens of people in bright costumes, masks and pointy hats are riding around in flatbed trucks raising a ruckus, you can bet you're in Cajun Louisiana for Mardi Gras.…

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Cultural Forest

2013-02-06
Length: 2s

In northeastern Thailand, scientists are learning lessons from indigenous people on how to manage the endangered forest ecosystem.…

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Swendsen - Magical Sounds

2013-02-05
Length: 2s

What unique instrument can only be heard in the middle of winter?…

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Oertel - Organ Pipes

2013-02-04
Length: 2s

Can chemistry keep some of the world's oldest organs from turning to dust? …

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Crows - More Than a "Caw"

2013-02-01
Length: 2s

"Caw caw" says the crow. Well, yes, but a lot more too!…

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Crows - Tools

2013-01-31
Length: 2s

Humans aren't the only animals with tools. One species of crow has a whole arsenal of instruments that it uses to snag its dinner. …

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Science Diary: Mohonk - Records

2013-01-30
Length: 2s

Day by day, researchers at New York's Mohonk Preserve add their measurements to a continuous 115-year record of weather and nature observations.…

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Science Diary: Mohonk - Signals from Nature

2013-01-29
Length: 2s

Naturalists tune in to the rhythms of nature using all of our senses.…

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Science Diary: Mohonk - Recording Nature

2013-01-28
Length: 2s

The records of one family in New York's Hudson Valley are shedding light on regional weather and climate patterns.…

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Crows - Raven Language

2013-01-25
Length: 2s

Gurgles, knocks, and the sound of bells... a car on the fritz? No, it's the unique language of the raven. …

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Crows - To Tell a Crow from a Raven

2013-01-24
Length: 2s

Crows and ravens may both be large, black birds, but they have very distinct voices.…

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Roma - Amplified Music

2013-01-23
Length: 2s

Roma music is eclectic, contemporary, and loud!…

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Roma - Census

2013-01-22
Length: 2s

For Roma, census-taking is not just a matter of counting heads.…

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Roma - Nomadic

2013-01-21
Length: 2s

Roma, or "gypsies" are not aimless wanderers, as centuries old belief has portrayed them.…

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Roma - Origins

2013-01-18
Length: 2s

Scholars are demystifying the origins of the Roma/gypsy culture. …

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Ice - An Amazing Substance (Memorial Program)

2013-01-17
Length: 2s

We explore some of the secrets behind ice's unusual properties.…

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Ice - Organic Antifreeze (Memorial Program)

2013-01-16
Length: 2s

How do small creatures make it through the brutal winter months? …

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Ice - Flakes and Frost (Memorial Program)

2013-01-15
Length: 2s

How is it that every snowflake is unique? It's all in the fall!…

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Ice - Sounds of Ice (Memorial Program)

2013-01-14
Length: 2s

Listen to some of the unexpected sounds of winter.…

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Ice - Freezing Lakes (Memorial Program)

2013-01-11
Length: 2s

The unusual way that water freezes allows fish and other aquatic life to survive the winter months. …

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Ice - Comets (Memorial Program)

2013-01-10
Length: 2s

To find the source of life on earth, some say we should look to the skies.…

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Rethinking Water

2013-01-09
Length: 2s

Can nature teach us sustainable ways to filter our wastewater? …

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Alaskan Russian Orthodox Christmas - Christmas Gifts

2013-01-08
Length: 2s

In rural Alaska, carolers wend their way from house, carrying an ornate star, and sharing in communal gifts.…

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Alaskan Russian Orthodox Christmas - Starring

2013-01-07
Length: 2s

Russian traders left the legacy of their traditions in Anchorage Alaska, including the Christmas-time practice of "starring".…

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Star Lore - Uses

2013-01-04
Length: 2s

Throughout history disparate cultures have looked to the stars to navigate and to time their harvests.…

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Star Lore - Orion

2013-01-03
Length: 2s

It may look like Orion's belt to us, but other cultures have had their own interpretation of this striking group of stars.…

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Mummers Parade - History

2013-01-02
Length: 2s

The flamboyance of the Mummers' Parade arose from the grand masquerade balls of Philadelphia society in the 1800's.…

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Mummers Parade - Participants

2013-01-01
Length: 2s

The Mummers Parade is a spectacular orchestration of costume, music, and dance. …

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Mummers Parade - String Bands

2012-12-31
Length: 2s

Since 1902, the "String Band" of the Mummers Parade has been revered by Mummers and townspeople alike.…

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Wassail

2012-12-28
Length: 2s

An ancient Anglo-Saxon tradition called "Wassail" lives on in Pennsylvania, where a group of friends celebrate this week by drinking to the health of apple trees.…

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Year End Fire Watch

2012-12-27
Length: 2s

"Be careful with fire!" is the call heard throughout Tokyo neighborhoods on the last two evenings of the year.…

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Kwanzaa - Traditions

2012-12-26
Length: 2s

This week, millions of people around the world celebrate Kwanzaa, a relatively new holiday with roots in the ancient harvest festivals of Africa.…

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Kalas

2012-12-25
Length: 2s

In Lindsborg, Kansas, folks still mark this time of year with traditions their ancestors brought from Sweden.…

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Christmas Bonfires - Tradition

2012-12-24
Length: 2s

Along the banks of the Mississippi River, a line of Bonfires lights the way for Papa Noel.…

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Natural Astronomy - Solstice

2012-12-21
Length: 2s

This week is the winter solstice. But without a calendar, would you be able to tell?…

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Natural Astronomy - Rock Clock

2012-12-20
Length: 2s

One astronomer uses a home-made version on Stonehenge to keep track of the passing seasons.…

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Seasonal Backyard Science - Every Tree Tells A Story

2012-12-19
Length: 2s

Examining a fallen tree can reveal a lot about the animals that have used it.…

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Seasonal Backyard Science - Insects

2012-12-18
Length: 2s

Even in winter, you can find springtails!…

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Seasonal Backyard Science - Winter Secrets

2012-12-17
Length: 2s

When you find grooves in the snow, or piles of pine cone chips - who has been there? Learn about the signs that animals leave behind.…

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Seasonal Backyard Science - Holes

2012-12-14
Length: 2s

Grey squirrels have two homes - winter and summer, and woodpeckers help in the renovation process of the winter dwelling.…

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Santa Lucia - Waking Up

2012-12-13
Length: 2s

Serving sweet bread and wearing a crown of candles, young Swedish girls represent Saint Lucia in an early morning ritual. …

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Santa Lucia - History

2012-12-12
Length: 2s

The ancient legends of Santa Lucia are still embraced by the Swedish culture, with rituals of light in the darkness of winter.…

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Bears - Slowing Down

2012-12-11
Length: 2s

Bears have unique mechanisms for self-preservation during their months of hibernation.…

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Bears - Birthing

2012-12-10
Length: 2s

For bears in hibernation, giving birth and nursing newborns is a slumberous activity.…

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Black Bears - Denning

2012-12-07
Length: 2s

This month, Minnesota's Black Bears have taken to their dens to spend the long winter in hibernation.…

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Sinterklaas

2012-12-06
Length: 2s

Change Santa Claus's team of reindeer into a single white horse, and replace his costume with a bishop's robes, and you'll begin to get a picture of the Netherlands' Sinterklaas.…

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Klausjagen - Celebration

2012-12-05
Length: 2s

With bells, whips and candles, a Swiss village celebrates St. Nicholas' Day.…

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Grizzly Tracking - Signs

2012-12-04
Length: 2s

Grizzly bear tracking usually involves splitting a few hairs.…

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Grizzly Tracking - Crucial Corridor

2012-12-03
Length: 2s

Scientists and volunteers work together to see if Grizzly bears are finally returning to the mountains of Montana.…

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Patagonia Penguins - Raising Chicks

2012-11-30
Length: 2s

For Patagonian penguins, parenting requires manic intensity to insure survival of their chicks.…

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Patagonia Penguins - Adapting to Survive

2012-11-29
Length: 2s

Penguins have adapted to the harsh conditions of Patagonia where they flourish as adept ocean dwellers.…

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Patagonia Penguins - Life Histories

2012-11-28
Length: 2s

Patagonia is home to over one million penguins who spend much of their lives on the surface of the ocean.…

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Mosses of Cape Horn - World's Most Versatile Plant?

2012-11-27
Length: 2s

Traditional uses of mosses reveal some of their remarkable qualities.…

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Mosses of Cape Horn - Just Add Water

2012-11-26
Length: 2s

Meet one of the masters of suspended animation.…

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Mosses of Cape Horn - Research on the Edge

2012-11-23
Length: 2s

Researchers brave the wild conditions of Tierra del Fuego to learn more about mosses. …

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Thanksgiving - Foods

2012-11-22
Length: 2s

The first Thanksgiving probably bore the markings of a traditional American Indian meal.…

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Persimmon Harvest

2012-11-21
Length: 2s

An annual harvest of wild persimmons has been a lifelong tradition for Carrie Hamby.…

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Spice Cabinet - Medicine Cabinet

2012-11-20
Length: 2s

Climate has had a distinct influence on the spices used in regional cuisine and their efficacy.…

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South Asian Vultures - Nature's Undertakers

2012-11-19
Length: 2s

The vultures of South Asia play a crucial role in their local ecosystem.…

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Barry Commoner - Preventing Pollution

2012-11-16
Length: 2s

Scientist Barry Commoner tells us what it will take to truly reverse pollution.…

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Diwali - Goddess of Good Fortune

2012-11-15
Length: 2s

The Hindu goddess of good fortune is worshipped during a ceremony of light and chanting, for blessings of spiritual wealth and enlightenment.…

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Diwali - Bathing the Gods

2012-11-14
Length: 2s

Divine statues are bathed with milk, honey, and other symbolic offerings during the Hindu celebration of Diwali.…

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Diwali

2012-11-13
Length: 2s

Diwali is a luminous celebration of enlightenment.…

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E.O. Wilson - Electric Fish

2012-11-12
Length: 2s

A surprising explanation on how a unique kind of fish communicates and captures their prey.…

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E.O. Wilson - Future of Science

2012-11-09
Length: 2s

Advanced scientific discoveries in the 21st century are addressing philosophical questions of centuries past.…

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E.O. Wilson - Ant Communication

2012-11-08
Length: 2s

A variety of chemical exchanges enable ants to navigate their world and coordinate their activities.…

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E.O. Wilson - Chemical Signals

2012-11-07
Length: 2s

Chemical secretions bring a new meaning to the science of insect communication.…

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E.O. Wilson - The Mark of Science

2012-11-06
Length: 2s

Science is rooted in discovery, deepening our knowledge of the physical world, and enriching the human experience.…

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Barry Commoner - Ecosphere and Technosphere

2012-11-05
Length: 2s

The late Barry Commoner shares his insights on balancing science and nature. …

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Day of the Dead - Preparations

2012-11-02
Length: 2s

How do you prepare for a feast with the Dead? We look to Mexicos Day of the Dead for a solution.…

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Day of the Dead

2012-11-01
Length: 2s

In early November, many Mexicans visit their departed loved ones, and celebrate the Day of the Dead.…

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Sounds of All Saints' Day

2012-10-31
Length: 2s

A gospel song and a graveyard party: the unique sounds of New Orleans on the Day of the Dead.…

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SciDi: Koalas - Mystery

2012-10-30
Length: 2s

Why has the koala population of St. Bees Island remained stable, while other regions struggle to keep the koala population under control?…

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SciDi: Koalas - Success

2012-10-29
Length: 2s

At last! A research team finally spots a well-hidden koala.…

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SciDi: Koalas - Strategies

2012-10-26
Length: 2s

Koalas don't keep quiet and still all day because they're lazy - it's a metabolic strategy!…

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SciDi: Koalas - Tracking

2012-10-25
Length: 2s

Join in the hunt as researchers track down koalas!…

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SciDi: Koalas - Goats

2012-10-24
Length: 2s

The koalas of Australia's St. Bee's Island have an unlikely adversary - goats.…

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SciDi: Koalas - Finding

2012-10-23
Length: 2s

Even on an island full of koalas, finding one is much more difficult than it might seem!…

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The Moon - Origin

2012-10-22
Length: 2s

In the early stages of our galaxy, celestial bodies had a habit of colliding with each other. Scientists think that's how we got our moon.…

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SciDi: Frontiers of the Brain - Glitch

2012-10-19
Length: 2s

Analyzing the workings of the human brain is difficult enough when everything works as it should. Unfortunately, sometimes it doesn't. …

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SciDi: Frontiers of the Brain - Listening In

2012-10-18
Length: 2s

Science Diarist John Beggs gives us a peek (and a listen) into our brains.…

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Weddell Seals - Calls

2012-10-17
Length: 2s

For Weddell seals, "every sound tells a story".…

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Weddell Seals - Mating

2012-10-16
Length: 2s

The mating game - Antarctic style.…

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Bee Powerline Habitat - Native Bees

2012-10-15
Length: 2s

With honeybees endangered, it's native bees to the rescue! …

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Bee Powerline Habitat - Junk Land

2012-10-12
Length: 2s

The land beneath powerlines is a prime spot for native bees to thrive.…

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Bee Powerline Habitat - Conserving

2012-10-11
Length: 2s

Beetles need a place to live, too! …

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Bee Powerline Habitat - Parasites

2012-10-10
Length: 2s

Forget about the hive: some bees are downright anti-social! …

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SciDi: Frontiers of the Brain - Replicating Data

2012-10-09
Length: 2s

A new model shows promise in helping Science Diarist John Beggs understand data collected from neurons. …

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SciDi: Frontiers of the Brain - The Wave

2012-10-08
Length: 2s

How does a crowd of sports enthusiasts function like a brain? Stay tuned. …

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SciDi: Frontiers of the Brain

2012-10-05
Length: 2s

Science Diarist John Beggs explains what makes neuroscience like the Wild West.…

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Mushrooms - Tree Host

2012-10-04
Length: 2s

When foraging for wild mushrooms, it helps to know your tree types.…

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Storm Ecology - Trickle Down

2012-10-03
Length: 2s

Heavy storms cause a lot more than water to come trickling down into our rivers. …

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Storm Ecology - Light

2012-10-02
Length: 2s

Stuart Findlay tells us about the un-seeen effects of storms on the ecosystem.…

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Storm Ecology - Fish and Flood

2012-10-01
Length: 2s

Environmental Analyst Bob Adams tells us what a flood could possibly mean to a fish. …

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SciDi: Physics - Science of Humility

2012-09-28
Length: 2s

For an apprentice, experimental physics can be a humbling endeavor.…

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SciDi: Physics - Cyclotron

2012-09-27
Length: 2s

If you like smashing things, nuclear physics may be the field for you!…

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SciDi: Physics - Parsing Particles

2012-09-26
Length: 2s

Ask a few physicists to define the word particle, and the answers will vary.…

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Africa - Surma Stick

2012-09-25
Length: 2s

Stick fighting among the Surma tribe of Africa is fierce and violent. But they do it in the name of love.…

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SciDi: Asia Bat - Data

2012-09-24
Length: 2s

What's more difficult that catching and tagging bats? Catching and tagging bats while drowsy! …

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SciDi: Asia Bat - Name

2012-09-21
Length: 2s

Correctly identifying Indonesian bats can be tricky, even for those in the know. …

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Katydids and Crickets - Thermometer

2012-09-20
Length: 2s

Out in the woods and wondering what the temperature is? You might give listening a try. …

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Katydids and Crickets - Heard

2012-09-19
Length: 2s

Crickets and katydids sing for their mates, each species calling for love with a different tune.…

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Katydids and Crickets - Noise

2012-09-18
Length: 2s

There's more to a cricket chirp than you might realize! We take a closer listen. …

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Katydids and Crickets - Chorus

2012-09-17
Length: 2s

An entomologist gives us a tour of the insects singing along a creek one hot summer night. …

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Katydids and Crickets - Discovery

2012-09-14
Length: 2s

Scientists learn something new about crickets and katydids when they stop looking and start listening.…

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Sustainable Chemistry - Splitting Water

2012-09-13
Length: 2s

In the process of developing alternative fuel souces, you may have to split a few molecules along the way.…

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Sustainable Chemistry - Spinning Water

2012-09-12
Length: 2s

Why is the manufacturing of electric thin films like an amusement park ride? Stay tuned. …

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Sustainable Chemistry - Electric Sandwich

2012-09-11
Length: 2s

The technology behind your computer screen is, in effect, a layered electronic "sandwich".…

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Sustainable Chemistry - Thin Film

2012-09-10
Length: 2s

You may not have ever heard of thin film technology, but you're probably carrying it right now! …

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Hurricane Observation - Emily

2012-09-07
Length: 2s

65,000 feet in the air, alone, staring down the eye of a hurricane ? It's all in a day's work for ER-2 research pilots.…

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Hurricane Observation - High Altitude Lab

2012-09-06
Length: 2s

High-altitude planes use a variety of onboard research instruments to study both earth and space.…

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Hurricane Observation - Pilot

2012-09-05
Length: 2s

Research pilots fly high above the tumult of a hurricane, capturing data from sea level on up.…

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Big Horn Sheep - Finding

2012-09-04
Length: 2s

Big Horn Sheep spend the first several months of their lamb's life high up on rock canyon ledges before finally coming down for water. …

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Big Horn Sheep - Tracking

2012-09-03
Length: 2s

Field biologist Janene Colby tracks Big Horn Sheep in the sweltering heat of Anza-Borrego Desert State Park.…

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Outer Banks Coastal Research - Rhythms

2012-08-31
Length: 2s

Following the seasonal rhythms of the shoreline conveys the impression that it is a dynamic entity, constantly responding to the forces of nature.…

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Outer Banks Coastal Research - Measurements

2012-08-30
Length: 2s

Picture an amphibious buggy riding atop a 35 foot tripod. That's the CRAB - used to map the contours of a changing shoreline. …

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Outer Banks Coastal Research - Building Up

2012-08-29
Length: 2s

Beaches erode, but over time they can also replenish and grow. Surprisingly, sometimes the engine of growth can be a storm.…

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Outer Banks Coastal Research - Forces

2012-08-28
Length: 2s

With the constant interplay of waves, wind and erosion, the coastline is a crucible of ever-changing forces. …

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Outer Banks Coastal Research - Dynamics

2012-08-27
Length: 2s

Studying the shoreline is like playing three dimensional chess with the forces of natures. …

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Narwhal Tusks- Tubes

2012-03-15
Length: 2s

Tender teeth hurt, so why would an animal swimming in frigid waters have an 8-foot long sensitive tooth? …

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Narwhal Tusks - Legends

2012-03-14
Length: 2s

With its long tusk-like tooth and mottled coloration, the Narwhal has intrigued sailors and royalty alike and may have been the inspiration for the Unicorn.…

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Narwhal Tusks - Big Tooth

2012-03-13
Length: 2s

A fifteen-foot whale with an 8 foot-long tusk may sound like another fish story, but it's not! …

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Koukery Fertility Festival: History

2012-03-12
Length: 2s

Bulgarian villagers supposedly locked up the local priests for a day to carry on with the celebration of Koukery.…

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Science Diary: Acoustical Ecology - Spring Peeper

2012-03-09
Length: 2s

How do frogs react as a motorcycle cruises past their wetland habitat?…

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Hummingbirds - Brain Structure

2012-03-08
Length: 2s

The brain structure of hummingbirds has given researchers something to think about.…

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Hummingbirds - Brain Size Doesn't Matter

2012-03-07
Length: 2s

Understanding the cerebral activity of hummingbirds may lead researchers to resolve human language disorders.…

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Hummingbirds - Imitative Songs

2012-03-06
Length: 2s

Hummingbirds are tiny virtuosos of the animal kingdom.…

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Red Squirrel: Sweet Treat

2012-03-05
Length: 2s

Red Squirrels may be nature's original harvesters of Maple sugar.…

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Science Diary: Frogs - Toad Muster

2012-03-02
Length: 2s

In Australia, Cane Toads are an invasive species whose toxic skin kills would-be predators. One community is striking back with the help of a toad-sniffing canine. …

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Science Diary: Frogs - New Discoveries

2012-03-01
Length: 2s

Undiscovered species may be living in a neighborhood near you. But when and where to look for them?…

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Science Diary: Frogs - Toxins

2012-02-29
Length: 2s

Frogs are sensitive creatures, and theyre sending us a warning. It may be wise to heed their message.…

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Science Diary: Frogs - Drought

2012-02-28
Length: 2s

Frogs and water go hand in hand. But in some arid regions, frogs can survive for years without rain.…

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Science Diary: Frogs - Quarantine

2012-02-27
Length: 2s

Endangered tadpoles found! Call the Frog Rescue Service; theyll pick them up, nurture them, and find them suitable homes.…

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Musical Brains: Lullabies

2012-02-24
Length: 2s

The unique qualities of lullabies transcend age and culture.…

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Science Diary: Redwoods - Old Growth Advantage

2012-02-23
Length: 2s

There are a variety of attributes that make a redwood unique, and many of them come with age.…

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Science Diary: Kilauea - Pistons

2012-02-22
Length: 2s

Want to know the dimensions of a volcano's interior? Use an audio tape measure.…

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Musical Brains: Baby Talk

2012-02-21
Length: 2s

According to a child psychologist at the University of Toronto, baby talk is truly a universal language.…

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Science Diary: Volcano - Climb

2012-02-20
Length: 2s

Volcanoes may emit low frequency sounds prior to erupting. Scientists are using microphones to monitor these infrasounds. …

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Science Diary: Monkeys - Spider Rehab

2012-02-17
Length: 2s

You can train a monkey to shake hands, but can you retrain it to survive in the jungle?…

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Science Diary: Monkeys - Social Dramas

2012-02-16
Length: 2s

It may not be Days of Our Lives, but observing the behavior of Capuchin monkeys is a lot like watching the daily soaps.…

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Science Diary: Monkeys - Capuchins Up Close and Personal

2012-02-15
Length: 2s

Who needs an alarm clock with banana-seeking monkeys in the neighborhood?…

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Science Diary: Monkeys - Leaf Eaters

2012-02-14
Length: 2s

Costa Rican monkeys are adapting to human disturbances.…

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KSC: Animal Smarts - Designing an Experiment

2012-02-13
Length: 2s

Animal Psychology 101: To understand how an animal thinks, first consider their everyday challenges. …

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KSC: Animal Smarts - Enrichment

2012-02-10
Length: 2s

No free lunch! Animals living in captivity are challenged to maintain the skills they would be using in the wild.…

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KSC: Animal Smarts - Why We Study Their Intelligence

2012-02-09
Length: 2s

Understanding how a dog thinks can ultimately help people that depend on canine assistance. …

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Thaipusam - Trance

2012-02-08
Length: 2s

The Hindu festival of Thaipusam is a day where devotees turn their attention away from the physical world.…

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Thaipusam - Story of Lord Murugan

2012-02-07
Length: 2s

The holiday of Thaipusam celebrates the victory of the Hindu god Murugan over a human devotee with a bad case of over- ambition.…

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KSC: Animal Smarts - Dogs Were Once Wolves

2012-02-06
Length: 2s

Dogs and humans have changed each other in many ways over the years... perhaps for the better. …

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Science Diary: Monkeys - Habituate

2012-02-03
Length: 2s

Feed a wild monkey, and you may alter its reproductive cycle.…

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Mangroves: Shrimp Farms

2011-11-09
Length: 2m 0s

A shrimp farm only lasts for five years- what happens after that?…

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Mangroves: Transformers

2011-11-08
Length: 2m 0s

Mangroves are a lot more important than you might think.…

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Mangroves: Filter

2011-11-07
Length: 2m 0s

Acting as filters, fish nurseries, and a source of food for shellfish, mangroves are a critical ecosystem.…

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Science Diary: Mims - Tree Rings

2011-11-04
Length: 2m 0s

Counting tree rings is a great way to determine that tree's age. But what can variations in tree ring colors tell us about sunlight conditions?…

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Kartchner Caverns: Clean

2011-11-03
Length: 2m 0s

Recently opened, Kartchner Caverns is a place where park officials try their hardest to keep the cave clean, which means that the only thing humans leave behind are footprints.…

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Kartchner Caverns: Humidity

2011-11-02
Length: 2m 0s

This cave is very wet and its formations are still growing, so park officials use everything from misting systems to airlock doors to counteract and keep out the dry desert air of Arizona.…

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Fossils & Myths: Ancient Paleontology

2011-11-01
Length: 2m 0s

There is a new theory that thousands of years ago, the Greeks were analyzing remains of ancient animals, and creating myths about them.…

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Fossils & Myths: Intro

2011-10-31
Length: 2m 0s

There is now evidence that creatures in Greek mythology were not entirely mythical.…

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Science Diary: Flavor - Ingredients

2011-10-28
Length: 2m 0s

By understanding and synthesizing chemicals found in food, flavor scientists have a powerful taste-tool at their disposal.…

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Natural Radio: Whistlers

2011-10-27
Length: 2m 0s

Radio waves created by lightning can be heard from halfway around the planet.…

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KSC Biomimicry - Running Roaches

2011-10-26
Length: 2m 0s

Cockroaches might love junk food, but that's not why they're running on treadmills.…

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KSC Biomimicry - Gecko Tails

2011-10-25
Length: 2m 0s

A gecko's tail is used for gripping and gliding; engineers are building its attributes into a new breed of miniature robots.…

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Antpitta: The Reserve

2011-10-24
Length: 2m 0s

A rare species of bird is protected in its forest habitat, high in the mountains of southern Ecuador.…

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Antpitta: Discovery

2011-10-21
Length: 2m 0s

How does one discover a new species of bird? Listen up!…

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KSC Biomimicry - Adhesive Cloth

2011-10-20
Length: 2m 0s

To develop a fabric that can adhere to any surface, scientists are looking to geckos for clues.…

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KSC Biomimicry - Gecko Release

2011-10-19
Length: 2m 0s

When geckos release from a surface they're climbing, their feet act as tiny party favors, enabling them to adhere to practically anything.…

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Paralysis Technology -Brain Power

2011-10-18
Length: 2m 0s

Soon paralyzed patients my be able to grasp objects with a device that is controlled by their own thoughts.…

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Paralysis Technology -Controlling the Hand

2011-10-17
Length: 2m 0s

Quadriplegic patients can now do common tasks with the aid of a device that uses shoulder movements to control their paralyzed hands.…

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Paralysis Technology - FES

2011-10-14
Length: 2m 0s

Electrical stimulation is enabling quadriplegic patients to grasp objects.…

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Geologist - Mapping

2011-10-13
Length: 2m 0s

We know a lot about the world around us, but how much do we know about the ground beneath us? Geologists are mapping it out.…

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Geologist - Senses

2011-10-12
Length: 2m 0s

To identify a rock, geologists have been known to smell and even taste their specimens.…

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KSC Biomimicry - Gecko Adhesion

2011-10-11
Length: 2m 0s

Gecko feet aren't sticky, but they adhere to almost any surface.…

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KSC Biomimicry - Neuromechanics

2011-10-10
Length: 2m 0s

For animals, movement is second nature, but otherwise sophisticated robots have to calculate every step.…

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Mites: Controlling

2011-10-07
Length: 2m 0s

Scientists are testing botanical compounds to help control honeybee mites.…

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Mites and Bees

2011-10-06
Length: 2m 0s

An epidemic of mite infestations is threatening North American bee colonies.…

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KSC Biomimicry - Novel Robots

2011-10-05
Length: 2m 0s

Robots can be so, well, robotic. But bio-inspired engineering is pointing the way to a new and nimble breed of robots.…

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KSC Biomimicry - Pogo Stick

2011-10-04
Length: 2m 0s

If you've bounced on a pogo stick, you're already well on your way to understanding how animals run.…

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KSC Biomimicry - Wasps

2011-10-03
Length: 2m 0s

Without so much as a diet, wasp waists are incredibly thin; and their structure is inspiring engineers to create a new kind of packaging.…

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Kids' Science Challenge: Biomimicry - Reading Slug Slime

2011-09-30
Length: 2m 0s

In the slug world, much can be gleaned from the trail of slime a slug leaves behind.…

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Kids' Science Challenge: Biomimicry - Hippo Sweat

2011-09-29
Length: 2m 0s

If you want to protect yourself from the sun, insects, and disease, just slather on some hippo sweat!…

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Kids' Science Challenge: Biomimicry - Giraffes

2011-09-28
Length: 2m 0s

A petroleum alternative: Giraffe Mucus!! Aided by mucus, giraffes routinely swallow sharp thorns without hurting themselves.…

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Kids' Science Challenge: Biomimicry - Collecting Mucus

2011-09-27
Length: 2m 0s

Everything you ever wanted to know about how to collect giraffe drool and hippopotamus sweat, but were afraid to ask.…

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Kids' Science Challenge: Biomimicry - Magical Mucus

2011-09-26
Length: 2m 0s

Mucus plays many roles. In fact, without it, we wouldn't be here.…

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Kids Science Challenge: Claire Filtration

2011-09-23
Length: 2m 0s

Kids' Science Challenge winner Claire Dworsky learns about the importance of filtering water before testing it.…

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Kids' Science Challenge: Claire - Reagents

2011-09-22
Length: 2m 0s

Our Kids' Science Challenge water winner learns how to test for nutrient contaminants in water.…

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Elephant Seismic Detection - Hearing

2011-09-21
Length: 2m 0s

An elephant listens with... its toenails?!…

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Elephant Seismic Detection - Underground

2011-09-20
Length: 2m 0s

If you feel the ground shake, perhaps you'd better do as the elephants do: listen DOWN.…

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Biological Invaders - Ecology

2011-09-19
Length: 2m 0s

Humans are largely responsible for the demise of the biological immunity of ecosystems.…

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Biological Invaders - Biocontrol

2011-09-16
Length: 2m 0s

The ravage of biological aliens challenge our abilities to control them effectively.…

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Biological Invaders - Aussie Invasions

2011-09-15
Length: 2m 0s

Australia has played host to unwanted visitors since the 19th century.…

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Biological Invaders - Salvinia

2011-09-14
Length: 2m 0s

Moving a species to a foreign environment may ultimately require importing another species to control the first.…

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Biological Invaders - Adaptation

2011-09-13
Length: 2m 0s

Disparate species are being unnaturally relocated without the benefit of time for adaptation.…

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Dragonflies - Cape May

2011-09-12
Length: 2m 0s

Where's a great place to watch dragonflies migrate?…

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Dragonflies - Mating Strategy

2011-09-09
Length: 2m 0s

One of the world's most venerable insects has developed a sucessful means of reproduction.…

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Dragonflies - Wired

2011-09-08
Length: 2m 0s

Tiny transmitters may help unlock the mysteries of dragonfly migration.…

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Dragonflies - Riding the Wind

2011-09-07
Length: 2m 0s

Unfortunately for dragonflies, they're not the only creatures who migrate riding wind currents.…

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Dragonflies - Migration

2011-09-06
Length: 2m 0s

It's a rare event, but a grand sight to behold - thousands upon thousands of dragonflies.…

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Dragonflies - Myths and Truths

2011-09-05
Length: 2m 0s

Can nature's flying insect carnivores bite people?…

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Science Diary: Flavor - All in the Taste

2011-09-02
Length: 2m 0s

Most scientists refrain from eating anything in their labs, and for good reason. But when it comes to flavor science, tasting chemicals is madatory.…

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Wolves and Moose - Antlers

2011-09-01
Length: 2m 0s

They're the largest antlered animal in the world and a lot faster that you'd expect them to be.…

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Wolves and Moose - Mutual Control

2011-08-31
Length: 2m 0s

On Isle Royale in Lake Superior, wolves and moose lead an interdependent existence.…

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Wolves and Moose-Unexpected Connections

2011-08-30
Length: 2m 0s

You might not expect the wolf population to effect the number of trees in an ecosystem - but it does.…

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Tsunamis - Predicting

2011-08-29
Length: 2m 0s

There was not an adequate warning issued for the Indian Ocean tsunami. What went wrong?…

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Spritzer Whizzer

2011-08-26
Length: 2m 0s

A third-grader has designed the "Spritzer Whizzer" - a new musical instrument made from water spay bottles. The Ode to Joy never sounded like this!…

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Dead Zone-From a Distance

2011-08-25
Length: 2m 0s

Farming practices in the mid-west have an impact on the environmental conditions in the Gulf of Mexico.…

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Dead Zone-Solutions

2011-08-24
Length: 2m 0s

Off the coast of Louisiana there's a region of ocean the size of the state of New Jersey that's virtually devoid of life.…

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Dead Zone - Causes

2011-08-23
Length: 2m 0s

Off the coast of Louisiana there's about 6000 square miles of ocean that's virtually devoid of life.…

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The Moon: Face

2011-08-22
Length: 2m 0s

Who is that man on the moon? If you're a scientist, that face isn't much of a mystery -- it's a record of the moon's history.…

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Tsunamis - Quakes

2011-08-19
Length: 2m 0s

For an earthquake to produce a tsunami, it has to change the shape of the ocean's bottom.…

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Science Diary: Redwoods - Update

2011-08-18
Length: 2m 0s

What's wrong with cutting down a forest if trees are replanted? Older trees appear to do a better job pulling carbon from our atmosphere.…

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Science Diary: Redwoods - Climbing

2011-08-17
Length: 2m 0s

Thinking of climbing a giant redwood? Don't try this at home!…

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Science Diary: Redwoods - Straw

2011-08-16
Length: 2m 0s

Imagine sucking water through a 300-foot straw; giant redwoods do this, in effect, every day.…

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Science Diary: Redwoods - Biodiversity

2011-08-15
Length: 2m 0s

Ferns, huckleberry bushes, even hemlocks make their home high atop giant redwoods.…

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The Moon: Earthquakes

2011-08-12
Length: 2m 0s

The gravitational pull of the moon causes our tides to rise and fall, and scientists think that it may have an influence on earthquake activity as well.…

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Diatoms Nanotechnology - Transformation

2011-08-11
Length: 2m 0s

An innovative way is being developed to create nanomaterials - tiny bits of matter -using microscopic organisms called diatoms.…

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Diatoms Nanotechnology-Shell Game

2011-08-10
Length: 2m 0s

Diatoms are among the world's oldest and most ubiquitous creatures, and they may soon be an important part of one of the newest branches of science and technology.…

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Diatoms Nanotechnology - Redefining "Man-made"

2011-08-09
Length: 2m 0s

Nanoparticles are so tiny that the atoms inside them obey the laws of quantum mechanics and not the laws of the physical observable world.…

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Diatoms Nanotechnology-Think Small

2011-08-08
Length: 2m 0s

Nanomaterials possess superior strength, are lighter weight, and have more resistance to wear and tear than conventional materials.…

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Science Diary: Volcano - Pele

2011-08-05
Length: 2m 0s

Like a giant wind instrument, Hawaii's Kilauea volcano is producing a continuous low-frequency melody.…

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Science Diary: Volcano - Silence

2011-08-04
Length: 2m 0s

With low-frequency volcano sound, it's a deafening silence, quite literally.…

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Science Diary: Volcano - Analyze

2011-08-03
Length: 2m 0s

Want to listen to a volcano? You'll first have to identify its dialect.…

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Science Diary: Volcano - Array

2011-08-02
Length: 2m 0s

Our ears are not the best tools for eavesdropping on a volcano's sonic secrets; that's where microphone arrays come in handy.…

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Golf Ball Warmer

2011-08-01
Length: 2m 0s

Will a warmer golf ball improve your game?…

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Science Diary: Volcano - Death

2011-07-29
Length: 2m 0s

Considering all the ways a volcano can kill a person, it's not a bad idea to keep one's distance.…

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Science Diary: Volcano - Eruption

2011-07-28
Length: 2m 0s

Geophysicist Milton Garces studies an active volcano's low frequency sound patterns in an effort to predict large-scale eruptions.…

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Weather Making Cities - Wetter Cities

2011-07-27
Length: 2m 0s

The cityscape is an environment that creates a micro-climate unto itself.…

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Weather Making Cities - What Can Be Done To Change It?

2011-07-26
Length: 2m 0s

Rooftop surfaces and strategically planted trees can ease the heat of urban environments.…

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Weather Making Cities - Description

2011-07-25
Length: 2m 0s

Meteorological conditions in urban areas are greatly influenced by the cityscape.…

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Science Diary: Caterpillars - Frass Thrower

2011-07-22
Length: 2m 0s

For some caterpillars, self-defense can be a real crapshoot!…

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Science Diary: Caterpillars - Cryptic

2011-07-21
Length: 2m 0s

Caterpillars are a tasty temptation for quite a few predators and they have evolved a suite of feisty protective measures.…

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Science Diary: Caterpillars - Stingers

2011-07-20
Length: 2m 0s

The sting of a caterpillar can keep predators, and human researchers, at bay.…

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Science Diary: Caterpillars - Importance of Diversity

2011-07-19
Length: 2m 0s

Virtually every organism in a rainforest ecosystem is part of an interdependent web of life.…

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Science Diary: Caterpillars - Interactions

2011-07-18
Length: 2m 0s

Tinker with the micro-ecology of just one plant, and you risk altering an entire ecosystem.…

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Science Diary: Caterpillars - Microcosm

2011-07-15
Length: 2m 0s

A diverse ecoysystem can be found within the leaves of one rainforest plant.…

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Science Diary: Caterpillars - Secrets of Finding

2011-07-14
Length: 2m 0s

Signs of caterpillars are easy to spot, but how do you locate the caterpillars themselves?…

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Antibiotics in Ancient Bone: Tetracycline

2011-07-13
Length: 2m 0s

Scientists have discovered traces of tetracycline in preserved human bones from Sudan that date back more than 2,000 years.…

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Antibiotics in Ancient Bone: Beer

2011-07-12
Length: 2m 0s

Take two beers and call me in the morning? Scientists now think that some ancient civilizations may have used bread and beer as a source of antibiotics.…

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Antibiotics in Ancient Bones

2011-07-11
Length: 2m 0s

Traces of tetracycline have been found in the bones of people who lived more than 2,000 years ago, and scientists think that their diet may have been the cause.…

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Science Diary: Caterpillars - Parasitoids

2011-07-08
Length: 2m 0s

In Costa Rica's banana plantations, parasitoids can keep hungry caterpillars in check.…

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Science Diary: Caterpillars - Alien

2011-07-07
Length: 2m 0s

Nature can be harsh, and in the case of caterpillar-eating parasitoids, it's downright gruesome.…

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Science Diary: Caterpillars - Many Types

2011-07-06
Length: 2m 0s

In Costa Rica's rainforest, the diversity of caterpillars rivals the diversity of the plants they consume.…

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Science Diary: Water - Pharmaceuticals

2011-07-05
Length: 2m 0s

Dive into the ocean, and you may be swimming in more than just salty water!…

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Science Diary: Water - Metals

2011-07-01
Length: 2m 0s

A beach sign warns against swimming due to water contamination. But is that notice up to date?…

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Science Diary: Water - Moon

2011-06-30
Length: 2m 0s

You may want to think twice before taking a dip in the ocean during a full moon.…

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Science Diary: Water - Fingerprints

2011-06-29
Length: 2m 0s

Bodies of water have unique identifying characteristics that enable scientists to trace pollutants to their source.…

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Science Diary: Okefenokee - Sandhill Migration

2011-06-24
Length: 2m 0s

Each year flocks of migrating Sandhill Cranes descend on Georgia's Okefenokee refuge and join their southern cousins.…

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Science Diary: Okefenokee - Rain Gators

2011-06-21
Length: 2m 0s

Someone should tell Captain Hook. If you can see the length of an alligator's nose, you can easily judge his overall size.…

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Science Diary: Red-Cockaded - Cavities

2011-06-20
Length: 2m 0s

Red-cockaded woodpeckers have specific home-site needs, and once their nest cavities are built, larger species have no qualms commandeering them.…

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Science Diary: Red-cockaded - Snakes

2011-06-17
Length: 2m 0s

Red-cockaded woodpeckers build a sticky sap fence to keep predators at bay.…

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Science Diary: Red-cockaded - Overview

2011-06-16
Length: 2m 0s

Okefenokee National Wildlife Refuge is a 1200-acre oasis for small groups of Red-cockaded woodpeckers.…

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Science Diary: Galway - Sediment

2011-06-13
Length: 2m 0s

By analyzing samples of sediment from the sea floor, Irish scientists can map underwater ecosystems.…

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Science Diary: Galway - Explore

2011-06-10
Length: 2m 0s

Most of Ireland's land mass is well below sea level, and that's why mapping the ocean floor is a high priority.…

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Science Diary: Beach Sand - Results

2011-06-09
Length: 2m 0s

After heat sealing and incubating samples of ocean water, counting bacteria is a numbers game.…

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Science Diary: Beach Sand - Testing

2011-06-08
Length: 2m 0s

Two resourceful middle school students use a household iron and a homemade incubator to conduct bacterial research.…

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Science Diary: Beach Sand - Sand

2011-06-07
Length: 2m 0s

A school science fair project has caught the attention of an oceanographer, who is helping to guide some significant research.…

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Science Diary: Beach Sand - Beach

2011-06-06
Length: 2m 0s

Could bacteria in beach sand be contaminating ocean water? Two middle school students are attempting to find out.…

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Science Diary: Exploring Tibet-Stone Tools

2011-06-03
Length: 2m 0s

Thousands of years after they were made, the scraps from a tool-making session are found.…

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Chamarita

2011-06-02
Length: 2m 0s

In honor of Azorean Portuguese ancestors and a beloved queen, the festival of Chamarita is one of humble origin.…

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Science Diary: Exploring Tibet - Bad Roads

2011-06-01
Length: 2m 0s

Before Science Diarist Mark Aldenderfer can start his research in Western Tibet, he has to get there!…

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Corn: Cooking

2011-05-30
Length: 2m 0s

The annual Corn Festival of San Cristobal de las Casas in Mexico, celebrates the diverse uses of this important crop.…

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Star Lore: Layers of Lore

2011-01-20
Length: 2m 0s

The night sky is rich with millennial lore.…

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Star Lore: Uses

2011-01-19
Length: 2m 0s

Throughout history disparate cultures have looked to the stars to navigate and to time their harvests.…

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Star Lore: Orion

2011-01-18
Length: 2m 0s

It may look like Orion's belt to us, but other cultures have had their own interpretation of this striking group of stars.…

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Alaskan Russian Orthodox Christmas: Christmas Gifts

2011-01-17
Length: 2m 0s

In rural Alaska, carolers wend their way from house, carrying an ornate star, and sharing in communal gifts.…

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Alaskan Russian Orthodox Christmas: Starring

2011-01-14
Length: 2m 0s

Russian traders left the legacy of their traditions in Anchorage Alaska, including the Christmas-time practice of "starring".…

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Blue Whales

2011-01-13
Length: 2m 0s

They dominate the ocean's soundscape with a pitch perfect trans-oceanic call.…

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Roma: Amplified Music

2011-01-12
Length: 2m 0s

Roma music is eclectic, contemporary, and loud!…

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Roma: Census

2011-01-11
Length: 2m 0s

For Roma, census-taking is not just a matter of counting heads.…

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Roma: Nomadic

2011-01-10
Length: 2m 0s

Roma, or "gypsies" are not aimless wanderers, as centuries old belief has portrayed them.…

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Roma: Origins

2011-01-07
Length: 2m 0s

Scholars are demystifying the origins of the Roma/gypsy culture.…

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Ice: An Amazing Substance

2011-01-06
Length: 2m 0s

We explore some of the secrets behind ice's unusual properties.…

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Ice: Organic Antifreeze

2011-01-05
Length: 2m 0s

How do small creatures make it through the brutal winter months?…

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Ice: Flakes and Frost

2011-01-04
Length: 2m 0s

How is it that every snowflake is unique? It's all in the fall!…

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Hawaiian-Japanese New Year: Food

2011-01-03
Length: 2m 0s

For one listener who grew up in Hawaii, New Year's day always meant a feast of traditional Japanese foods.…

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Hawaiian New Year's: Share

2010-12-30
Length: 2m 0s

As the last day of the year approaches, one Pulse of the Planet listener remembers New Year's as a time of Japanese traditions, Portuguese soup and Chinese firecrackers.…

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Science Diary: Exploring Tibet- Monsoon Politics

2010-12-29
Length: 2m 0s

Climate change thousands of years ago may have changed a culture.…

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Science Diary: Koalas- Mystery

2010-12-27
Length: 2m 0s

Why has the koala population of St. Bees Island remained stable, while other regions struggle to keep the koala population under control?…

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Christmas Bonfires: Tradition

2010-12-24
Length: 2m 0s

Along the banks of the Mississippi River, a line of Bonfires lights the way for Papa Noel.…

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Melting Polar Ice Cap: Future

2010-12-15
Length: 2m 0s

The North Pole is melting, and scientists tell us it will effect everything from polar bears to international politics.…

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Melting Polar Ice Cap: Intro

2010-12-14
Length: 2m 0s

The Arctic icecap appears to be melting, and some scientists say that within a century, the North Pole will be an open sea during the summer months.…

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Icing on Aircraft Wings: Flying into Ice

2010-12-10
Length: 2m 0s

To learn more about icing conditions, researchers fly straight to the source.…

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Science Diary: Frontiers of the Brain - Understanding Epilepsy

2010-11-23
Length: 2m 0s

When a group of neurons are overactive, it causes a seizure. By learning more about how neurons work, John Beggs hopes to find a cure for disorders such as epilepsy.…

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Science Diary: Frontiers of the Brain - Chattering Neurons