Family CASTORIDAE

(BEAVERS)

• Large, robust, semi-aquatic rodents with dorso-ventrally flattened tails about one-quarter of the total body length, small forelimbs, and webbed hindfeet.

• 100-120 cm.

• Palearctic and Nearctic Regions.

• All types of freshwater wetlands from streams and ponds to large rivers and lakes.

• 1 genus, 2 species, 2 taxa.

• No species threatened; none Extinct since 1600.