Beavers (genus Castor) are large, semiaquatic rodents of the Northern Hemisphere. There are two existing species: the North American beaver (Castor canadensis) and the Eurasian beaver …

Nov 7, 2025 · beaver, (genus Castor), either of two species of amphibious rodents native to North America, Europe, and Asia. Beavers are the largest rodents in North America and Eurasia and …

Today, there are two recognized species of beaver, the Eurasian beaver and the North American beaver. The North American beaver is native to the US, Canada, and northern Mexico, and …

Beavers are powerful swimmers that can swim underwater for up to 15 minutes. As the beaver dips underwater, the nose and ears shut to keep water out. Transparent inner eyelids close …

Beavers are semi-aquatic herbivores. They travel from water to land to collect and eat tree bark, leaves, roots, and wetland plants. Beavers are monogamous. They mate at around three …

A keystone species, the North American beaver, Castor candensis, are vital ecosystem engineers. Their dams create wetlands that are among the most biologically-productive …

Beavers are fascinating semi-aquatic mammals known for their incredible ability to transform landscapes. With their distinctive skills in dam-building and lodge construction, these rodents …

The beaver is the second-largest rodent after the capybara and a key ecosystem engineer. Using powerful incisors, it cuts trees and builds dams that reshape streams, create ponds and flood …

Find out more about beavers, where they live and how big they are, along with other fascinating beaver facts and what you can do to help.

Beavers are generally monogamous and sexually mature at about three years of age. Peak breeding activity occurs during the winter season, usually in January or February. Young are …