With oily fur to shed the water with a shake, the water shrew (Sorex palustris) can live a life that few other insect eaters can maintain. These little guys can dive underwater and hunt for insect larvae and small fish, then swim back to the surface and nibble on worms, snails, and even mushrooms. Water shrews are so light and bouyant that they must paddle hard just to stay submerged. They live mostly in mountain streams and nest in logs or underground burrows.

 
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