The descendants of black-bear-sized giants who could haul massive rocks with their mouths, modern Castor canadensis once numbered as many as 400 million in North America. Felling mighty trees with ...

DENVER – High in the mountains west of Fort Collins, teams of scientists and engineers are pretending to be beavers. They may not be swimming or chewing trees, but researchers with the U.S. Forest ...

Beavers and the dams they build promote sediment deposition and modify channel and floodplain morphology and physical complexity. Beaver activities may result in increased watershed-scale water and ...

As federal trappers remove thousands of beavers each year — including from prized trout streams — Wisconsin regulators face calls to weigh the critter’s flood-control benefits against ...