Why Bears Sleep All Winter

Three bears find it hard to sleep because of too much noise.

What Dinosaurs Left Behind

Fossil footprints led two boys to an important discovery.

Why Do Cliff Swallows Live Together?

Scientists have learned why these birds live in colonies.

All Together Now Fireflies!

Dr. Jonathan Copeland studies synchronous fireflies.

Big Bugs

See the work of an artist who makes giant sculptures of some of the world's smallest creatures.

Bird's Nest Safari

Learn how different birds make their nests.

Blind Ambition

Find out how this blind skier zips down the mountain.

Born to Run

Get on track with this popular sport.

Building a School

Kids who didn't know each other joined together to build a school in their new village in Africa.

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