The sea otter (Enhydra lutris) is a marine mammal native to the coasts of the northern and eastern North Pacific Ocean. Adult sea otters typically weigh...

The Asian small-clawed otter (Aonyx cinereus), also known as the oriental small-clawed otter and the small-clawed otter, is an otter species native to...

(2.2 to 99.2 lb) in weight. The Asian small-clawed otter is the smallest otter species and the giant otter and sea otter are the largest. They have very...

The Japanese otter (Japanese: ニホンカワウソ(日本川獺, Hepburn: Nihon-kawauso) (Lutra nippon) or Japanese river otter is an extinct species of otter formerly widespread...

Eurasian otter (Lutra lutra), also known as the European otter, Eurasian river otter, European river otter, common otter, and Old World otter, is a semiaquatic...

other otter species, except for the almost fully aquatic sea otter (Enhydra lutris) of the North Pacific. The marine otter is one of the smallest otters and...

The sea otter, Enhydra lutris, is a member of the Mustelidae that is fully aquatic. Sea otters are the smallest of the marine mammals, but they are also...

The smooth-coated otter (Lutrogale perspicillata) is a freshwater otter species from regions of South and Southwest Asia, with the majority of its numbers...

giant otter of Amazonian South America. Habitats vary widely as well, from the arboreal marten to the fossorial European badger to the marine sea otter. Population...

African clawless otter (Aonyx capensis), also known as the Cape clawless otter or groot otter, is the second-largest freshwater otter species. It inhabits...