Only one otter species seems to be thriving, and that's the North American River Otter. The other 12 otter species were recently identified by the International Union for Conservation of Nature (IUCN) ...

Otters are carnivorous mammals in the Lutrinae branch of the diverse Mustelidae family, which includes weasels, badgers, stoats, wolverines, and ferrets, among others. There are 13 living otter ...

Charismatic otters are the largest members of the weasel family. Unlike other weasels, otters are semi-aquatic. Their sleek bodies range in size from two to nearly six feet long. Thirteen otter ...

David Hocking does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

** They're voracious eaters. The nocturnal members of the weasel family have been known to wipe out a pond's worth of catfish in one night, and aren't particularly fussy about food. Frogs, mussels, ...