Water Shrews are almost invariably found near streams or other bodies of water, where they find food and also escape from predators. These shrews readily dive to stream bottoms, paddling furiously to keep from bobbing to the surface, their fur, full of trapped air, makes them buoyant. Learn more about the Sorex palustris, more commonly known as a Water Shrew, in this easy-to-read species overview by the Smithsonian's National Museum of Natural History.