IUCN status: Vulnerable
They are the state animal of West Bengal. They have wide but fragmented distribution in South and Southeast Asia. In India, they are found in West Bengal, Rajasthan, Uttar Pradesh, Bihar, Odhisa and Andhra Pradesh. They are found in countries like Pakistan, Bangladesh, Sri Lanka, Nepal, Myanmar, Thailand and Cambodia. They prefer habitats like rivers, streams, oxbow lakes, swamps and mangroves.
The reason for the reduction in their population is due to the loss of their habitat and conversion of them into agricultural use and for human settlements. The other causes are hunting, poaching, killing and over-exploitation of local fish stocks.
Skin with fur