This species of otter is the smallest of all otter species, and is native to parts of Southeast Asia. They are highly social animals, living in groups of up to 20 individuals. They are semi-aquatic, spending much of their time in rivers, streams, and wetlands.
From Wikipedia
The Asian small-clawed otter, also called oriental small-clawed otter and small-clawed otter, is an otter species native to South and Southeast Asia. It has short claws that do not extend beyond the pads of its webbed digits. With a total body length of 730 to 960 mm, and a maximum weight of 3.5 kg (7.7 lb), it is the smallest otter species.