— 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 ...

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 ...

Across the American West, land that once baked into cracked clay and dust is turning green again, not through concrete dams or massive pumps, but through the teeth and tails of beavers. Where people ...

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