Castor – Beavers

Perhaps the most industrious rodents in the world, meet the family of dam-building swimmers!

Once there were many species of heavy-skulled castorids, including giants as big as black bears. Now only two species remain, the North American beaver and the Eurasian beaver. They are skillful swimmers due to their webbed-back feet and flattened tails. Beavers are herbivores.

They mate for life and live in family units, with the parents and older siblings caring for the younger members. With their powerful incisors, they cut branches and use them to create elaborate dams and canals in the streams and lakes in which they live. These dams create wetlands in which many animal species thrive.