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WATCH: Why Dogs Are Great at Frisbee
A look at why dogs' eyes are so unique with the author of "Inside of a Dog." -
WATCH: Can Dogs Really Smell Time?
Author of "Inside of a Dog" explains why a dog's sense of smell is so powerful. -
WATCH: How Dogs' Hearing Is Different From Humans
Author of "Inside of a Dog" explains how dogs learn words and possibly language. -
WATCH: U.S. Military: Global Warming Helps Taliban
Former Army chief of staff lists security blows resulting from climate change.
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WATCH: Global Warming-Taliban Connection
Vanishing snow and increasing droughts assist terrorists. -
WATCH: Global Warming Brings in Billions for Taliban
Journalist Gretchen Peters documents the increase in poppy production. -
WATCH: 'Global Warming's Six Americas'
A look at a study about how Americans view climate change. -
WATCH: A Closer Look at Climate Change in the U.S.
Scientist Katharine Hayhoe explains the impact of climate change in each region. -
WATCH: How People Respond To Global Warming
Yale Professor Anthony Leiserowitz talks about opposing views of climate change. -
WATCH: Jane Goodall: The Woman Who Redefined Man
Goodall redefines the sixth extinction with proof of what's possible. -
WATCH: Goodall: Animals Think and Plan
Nature's resilience and surprising smarts, if given a chance. -
WATCH: Jane Goodall's Insight on Man vs. Nature
The cleverest animal "makes no sense" and vested interest extinctions. -
WATCH: Birds Suffer in Extreme Weather
How the Birds of Prey Foundation rehabilitates injured birds. -
WATCH: Climate Change's Impact on Your Region
Climate scientist Gerald Meehl explains how the latest findings affect you. -
WATCH: Inside the Mysterious World of Fireflies
Why these creatures light up the night and how high moisture helps them thrive. -
WATCH: Quack! Quack! Come Along the DC Duck Tour
We check out the nation's capital over land and through water. -
WATCH: The National Mall's Big Mess
A closer look at how the National Mall is being "loved to death." -
WATCH: Giant Pandas: Ambassadors with 'Major Awe Factor'
A look at why the giant pandas at the National Zoo are so popular. -
WATCH: The Fight to Save the Fastest Land Mammal
Dan Harris takes us deep into Namibia to run with the cheetahs. -
WATCH: A Close Encounter With Western Lowland Gorillas
Dan Harris takes us to the Central African Republic to meet gorillas. -
WATCH: Tribe on the Brink of Extinction
Dan Harris takes us to meet the last six members of a remote tribe. -
WATCH: Global Leaders Warned On Global Warming
Leading scientists step outside their comfort zone to say situation is dire. -
WATCH: Nature's Edge: Central Park
Nature and humanity meet right in middle of Manhattan. -
WATCH: N.Y. Hawk Stars in His Own Film
A film 16 years in the making documents the city-dwelling hawk named Pale Male. -
WATCH: Shakespeare Comes to Central Park
At night, nature is host to William Shakespeare in New York's Central Park. -
WATCH: Ed Wilson -- Gentle Scientist and Rock Star?
Glenn Close, Joshua Bell and Alan Alda explain why Wilson gets star treatment. -
WATCH: What Makes Us Human
What evolved two million years ago that sets us (and furry marmosets) apart. -
WATCH: Biophilia, Your Behavior, and Your Home
Ed Wilson defines biophilia, sociobiology and discusses how it affects you. -
WATCH: 'Extreme Mammals': Sugar Gliders & You
The outrageous range of mammal adaptation fascinates homo sapiens. -
WATCH: Meet the Tiniest Mammal Ever
This small creature is small enough to sit on the tip of a pencil. -
WATCH: Making an Intimate Museum Exhibit
Like no other medium, great dioramas give you wild animals' experience. -
WATCH: Frogs and Orchids: Fragile and Vanishing
From Costa Rica to Madagascar to California: Global warming's deadly trail. -
WATCH: Scientists' Hidden Work
Years of dedication in jungle sites find global warming's impact on Eden. -
WATCH: The Scientist's Heart, the Pain of Perception
World class scientists share thoughts on the human assault on creation. -
WATCH: Exploring Evolution in the Solomon Islands
Looking for more of Darwin's answers in the South Pacific. -
WATCH: Buried Time Bomb and Burning Ice
Vast natural stores of carbon dioxide and methane start to thaw out. -
WATCH: Eskimo Wisdom
The hard realities of advancing global warming. -
WATCH: 'Ill Wind' and Savoonga's Baby
The resilience of American hunter-gatherers and their great natural menu. -
WATCH: Waterless World in Our Future?
Alternative energy sources could use too much of earth's most precious resource -
WATCH: Central Park Bird-Watching
Long-time follower says fewer birds are migrating through the park. -
WATCH: Global Warming Data Buried in Mud
Scientists study sediments to see how warming water affects marine life. -
WATCH: Icebreaker Healy: Tour a Lab on the Sea
Stem to stern, crawling all over an icebreaker and sunny frozen sea surface. -
WATCH: How to Stalk a Walrus
Scientists show how and why to get extremely close to wild walrus. -
WATCH: Cuttlefish: Chameleons of the Sea
Amazing video of the cuttlefish and how it keeps predators at bay. -
WATCH: Aspen Institute: Confronting Climate Change
Scientists, spies, and engineers gather to confront climate issues. -
WATCH: Cooling Earth With Dust?
Experts' big ideas for staving off a global warming catastrophe. -
WATCH: Turning a Gallon of Water Into Energy
MIT inventor has "split a bottle of water" to power without carbon emissions. -
WATCH: Costa Rica Revisited
Biologist Karen Masters gives an update on her orchid and climate research. -
WATCH: Costa Rica and Climate Change
The co-founder Costa Rica's National Park System voices climate change concerns. -
WATCH: Learning About Liverworts
Scientists look to liverworts as possible litmus tests for climate change. -
WATCH: Antarctic Ice Sheet Melting Faster
Rising sea levels could impact New York, London in just a few decades. -
WATCH: The New Science of Play
Play proves vital for many species surviving in this dangerous world. -
WATCH: Parrot's Think! - A lot!!
Dr. Pepperberg explains, with help of Griffin, complexity of birds' brains. -
WATCH: Zoo Director Ponders Animal Thinking
Bronx Zoo's Jim Breheny continues to be captivated by animals' minds. -
WATCH: Linking Droughts to Global Warming
Scientists say weather is increasingly influenced by warming. -
WATCH: Ocean Acidification
Increased carbon dioxide levels in the atmosphere damage marine ecosystems. -
WATCH: Counting All the Fish in the Sea
Biologist Jesse Ausubel explains how scientists take a census of marine life. -
WATCH: Google the Ocean
Dive under the water with the computer mapping search engine Google Earth. -
WATCH: Warming to the Task
New York Mayor Bloomberg outlines challenges posed by global warming. -
WATCH: Never Seen Before: The Greenhouse Gases
A new camera shows images of the massive emissions for the first time. -
WATCH: The Psychology of Global Warming
Twenty years after Michael Oppenheimer's warnings, people are slow to act. -
WATCH: Solution: Suck CO2 out of the Air
How an imaginative engineer plans to remove harmful CO2 from the air. -
WATCH: State of the Planet
What causes global warming and how to stop it. -
WATCH: Pikas in Peril
The American Pika faces an extinction threat from global warming. -
WATCH: Climate Change Casualties
Australia's white lemuroid possum is gone; other species in danger. -
WATCH: Mission to Carbon Neutral
Former CIA Director takes us on a tour of his newly converted green home. -
WATCH: Why 'Unicorns' are Eco-Warriors
Meet the horned sea creatures that are monitoring climate change. -
WATCH: The Fears of Global Climate Disruption
Bill Blakemore explains why the Earth may be headed to another Jurassic Age. -
WATCH: Nature's Edge Notebook
Author discusses the possible catastrophic effects of global warming. -
WATCH: Obama's Climate Plan
President-elect says halting global warming is a top priority. -
WATCH: Is 'Clean Coal' Just an Ad Slogan?
Scientists disagree about whether clean coal is worth the money, or even doable. -
WATCH: Melting Polar Icecaps
Disappearance of ice shrinks wildlife habitat, damages ecosystems.
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