Otters of Ganga River Basin

Otters, belonging to the Mustelidae family of mammals, are social and charismatic creatures with eccentric and elusive habits, often evading public sight due to their nocturnal nature. These playful animals are highly adaptable, thriving in diverse habitats ranging from marine to freshwater to even semi- aquatic environments. Their streamlined bodies, webbed feet, and long tails make them excellent swimmers, while their dense fur—the densest among all animals—helps them survive near water bodies.

Globally, there are 13 otter species distributed across every continent except Antarctica and Australia. India is home to three of these species: the Eurasian Otter (Lutra lutra), the Smooth-coated Otter (Lutra perspicillata), and the Small-clawed Otter (Aonyx cinereus). Among these, the Smooth-coated Otter is found throughout the country, extending from the Himalayas southward. In contrast, the Eurasian Otter and the Small-clawed Otter are primarily restricted to the Himalayas, the region north of the Ganges, and southern India. 

Fish forms the primary food item, although their diet is supplemented with rodents, snakes, amphibians, small mammals, and even young fledgling birds.

Aquatic Species / Otters of Ganga