Otters are part of the Mustelid family which also includes ferrets, weasels, badgers, skunks and minks. There are 13 species of otter worldwide, and every continent of the world is home to at least one species of otter except Australia and Antarctica. Otters have been on earth for 30 million years.
Fact about Otters
Asian Small-clawed Otters have one of the most flexible backbones of all vertebrates.