Asian Small-Clawed Otters have a couple more cool features. They are the smallest of all the Otters, weighing in at a maximum of 10lb (4.5kg) and measuring up to 24in (61cm). They are also the most vocal. They make about a dozen different sounds, each with its own specific meaning. They also have excellent vision both above and below water.
Asian Small-Clawed Otters are listed as Vulnerable with a decreasing population trend. They are threatened by the loss of their wetland habitats, and by a loss of food supply from over-fishing and pollution.