The fishing cat (Prionailurus viverrinus) is a medium-sized wild cat of South and Southeast Asia. In 2008, the IUCN classified the fishing cat as Endangered since they are concentrated primarily in wetland habitats, which are increasingly being settled, degraded and converted. Over the last decade, the fishing cat population throughout much of its Asian range declined severely.
Like its closest relative, the leopard cat, the fishing cat lives along rivers, streams and mangrove swamps. It is well adapted to this habitat, being an eager and skilled swimmer.
The solitary living fishing cats are thought to be primarily nocturnal. They are very much at home in the water and can swim long distances, even under water. Females have been reported to range over areas of 4 to 6 km2 (1.5 to 2.3 sq mi), while males range over 16 to 22 km2 (6.2 to 8.5 sq mi). Adults have been observed to make a "chuckling" sound and likely have other calls similar to those of domestic cats.
As the name implies, fish is their main prey. A one-year study of scats in India's Keoladeo National Park found that fish comprised approximately three-quarters of the diet, with the remainder consisting of birds, insects, and small rodents. Molluscs, reptiles including snakes, amphibians and carrion of domestic cattle supplement their diet. They hunt along the edges of watercourses, grabbing prey from the water, and sometimes diving in to catch prey further from the banks.
Fishing cat are endangered due to their dependence on wetlands, which are increasingly being settled and converted for agricultural use, and also due to human over-exploitation of local fish stocks. It is believed to be extirpated in Afghanistan, it may already be gone from Malaysia and China, and it has become rare throughout its remaining distribution range.