There are 13 otter species, ranging from the small-clawed otter to the giant otter. They are all of which are semiaquatic, aquatic or marine. Otters are the only member of the weasel family that are ...

River otters really do have more fun. They jostle, belly-slide across ice and snow and toboggan down embankments into water. Splish splash. Few mammals are known to frolic as much as otters do, said ...