Beavers and muskrats are excellent builders. But how can you tell the difference between a beaver dam and a muskrat lodge?

There might be more beavers in Minnesota today than at any other time in state history. Minnesotans who live near water commonly must deal with beavers that cut trees and dam streams, leading to ...

The gang learns about dams./A bird drops a little oyster named Elroy on Nature Cat's head. The gang goes looking for their sleepy hammock and meet a family of beavers using trees to build a dam.

Giant dams built to tame the Colorado River have nearly wiped out native cottonwood trees along many riverbanks, disrupting local ecosystems. But new tiny dams, built to mimic ones that beavers make, ...