These resources from Nature: Leave it to Beavers explore beavers’ physical characteristics and how they fell trees and build dams. The video shows a beaver felling a tree and transporting a log underwater, and describes how beavers work together to build dams. The segment describes that beavers are vegetarians with incisors that grow continuously, self-sharpen, and are strengthened with iron, which makes them orange. The video concludes with a look at the Rocky Mountains, where beaver dams filter billions of tons of water. “Infographic: Beavers 101” and “Beaver Fact Sheet” provide a variety of a facts about beavers, their dams and lodges.