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Beavers | R
In the Rocky Mountains beaver dams slowly filter billions of tons of water. The ponds build up soil and nutrients and help prevent floods and droughts.

Big Bend | R
Big Bend National Park

Caracal | R
Incredible: A Caracal Slaps Down a Bird in Flight

Coral Reefs | R
Though they may look like colorful plants corals are in fact made up of tiny animals called polyps.

Leave It To Beavers | R
Leave It To Beavers (Full Documentary)

Pangolins | R
Pangolins: The Most Trafficked Mammal You've Never Heard Of | National Geographic

The Differences Between Crocodilians | R
The Differences Between Crocodilians

Yellowstone | R
Yellowstone: America's First National Park

Yellowstone Supervolcano | R
Why the Yellowstone Supervolcano Could Be Huge
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