Otter

An  otter is any of 13 living  species of  semiaquatic (or in the case of the  sea otter,  aquatic) mammals that feed on fish and  shellfish, and also other  invertebrates,  amphibians, birds and small mammals. --Wikipedia

     In scribblenauts, Otters are relatively harmless and will only attack anything that attacks them. Otters in the game are carnivorous, and will eat any form of meat, especially fish. Unlike in real life, the otters in Scribblenauts do not seem to have any noticable advantage in the water. Different general types of otters include river otters and sea otters, but the two are considered the same within the game.