Blue waters and rocks are a playground for river otters. This photo from Tennessee National Aquarium in Chattanooga. RESEARCH #DdO:) - https://www.pinterest.com/DianaDeeOsborne/animals-of-a-different/ - ANIMALS OF A DIFFERENT. Otters = only serious swimmers in the weasel family. They spend most of their lives in the water, and they are made for it, with sleek, streamlined bodies.