— Cora Wieneke, Mount Horeb, Wis. A Erin Flynn, conservation education curator at Henry Vilas Zoo in Madison, Wis.: Squirrels, beavers, chipmunks and rabbits all have similarly shaped teeth because ...

Prepare to be fascinated by the diligent and remarkable beaver with this captivating close-up video! Get an intimate look at their powerful, chisel-like teeth, perfectly adapted for felling trees, and ...

First, they were pelts, then pests. But now they are emerging as something else: climate heroes. With its chisel-like teeth, a beaver can fell a tree in a matter of hours. The animals eat the bark and ...