AP BIOLOGY

Detailed explanation-1: -The beaver is wonderfully adapted to his aquatic environment. Thick fur keeps him warm in icy mountain water, and a very thin second eyelid-much like a pair of goggles-lets him see underwater. Webbed hind feet swiftly propel the beaver through water, and he steers with his broad scaly tail.

Detailed explanation-2: -The behavioral adaptations of the beaver are building dams, tail slapping, and shared parental care. One of the most impressive behavioral adaptations of the beaver is dam building. Beavers build large dams by felling trees with their teeth.

Detailed explanation-3: -Beavers do get more skilled at dam building as they gain experience, but the building behavior is instinctive. Wilsson learned that the sound of running water is the cue for dam building and dam repair.

Detailed explanation-4: -Beaver bodies have several adaptations that help them swim, eat, and build their homes called dams. They have big, sharp teeth that help them gnaw, or chew, logs and branches. They also have glands that make their fur waterproof, and extra fat to keep them warm in winter.