CRITTERS OF NORTH IDAHO: Water shrew

It may surprise you how many kinds of animals adapt to a life more dependent on the water than their cousins. Sea otters, as their name implies, spend all of their lives at sea unlike their cousins, the river otters. Polar bears are the only species of bear classified as a marine mammal because they rely on the ocean for food and livelihood. The proboscis monkey of Southeast Asia is more aquatic than any other primate, using its partially webbed feet to dive underwater.