Meaning “ancient beaver” (Castoridae is the family that includes beavers), the several known species of Palaeocastor most likely looked like a cross between a modern North American beaver and a gopher ...

The North American beaver (Castor canadensis) is one of two beaver species in the world; the other is in Eurasia. It is the largest rodent in North America and it has many remarkable traits. It ...

The North American beaver, an often misunderstood and maligned aquatic rodent, builds dams with mud and sticks, which turns streams into valuable wetland ecosystems. Beaver ponds are necessary ...