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What is the source of the heat in Earth’s interior?
The heat inside Earth moves continents, builds mountains and causes earthquakes. You know Earth must be hot inside. What is the source of all this heat?
September 6, 2010
Inside a moth’s brain
Inside a moth's brain: Did you know a moth's brain is smaller than a pinhead? But there's a lot going on inside. Read more about it here.
August 24, 2010
John Hildebrand on blue whale songs’ lower pitch
The blue whale is still endangered. Yet, their population is rising. And that might explain why the pitch of their songs has gotten lower. Read more.
August 23, 2010
Ocean life snared in fishing gear
Rebecca Lewison studies what happens when long-lived marine populations - ocean life such as sea turtles, sea birds and seals - get snared in fishing gear.
August 23, 2010
Oliver Chadwick on the dust in the air
Oliver Chadwick says the world is a dustier place than ever before, due to human activities like agriculture and construction. Read more here.
August 23, 2010
The state of life on Earth with Anne Larigauderie
A new U.N. panel is designed to report back to the world on the state of the richness and variety of life on Earth. Read about the state of life on Earth.
August 9, 2010
A locust plague in Australia in 2010
Aerial drones will track the movements of what's expected to be an unusually large locust plague in Australia in 2010. Read more about it here.
August 9, 2010
Early human hunters might have changed climate
A study links early hunters with animal extinctions and climate change, 15,000 years ago. Read more about early human hunters.
August 2, 2010
Hawaiian monk seals and good and bad news
The entire population of Hawaiian monk seals is currently 1,100 seals. Walters explains why that's a good news/bad news situation.
August 2, 2010
Torosaurus is actually a triceratops
Palentologists have discovered that torosaurus and triceratops, considered to be separate species for over 100 years, are actually the same dinosaur.
July 22, 2010
