The last time the Asian small-clawed otter (Aonyx cinereus), the smallest of the world’s 13 known otter species, was recorded by scientists in Nepal was in 1839.

“After years of speculation about its presence in Nepal, we can finally confirm that the small-clawed otter lives on in the country,” said Mohan Bikram Shrestha, the lead author of a short note published in the latest edition of the bulletin of the Otter Specialist Group at the IUCN, the global wildlife conservation authority.

Although historically three species of otters are believed to occur in Nepal, modern researchers had until now only confirmed the presence of smooth-coated otters (Lutrogale perspicillata) and Eurasian otters (Lutra lutra), with a question mark hanging over the small-clawed otter. During that time, reports have come in, never confirmed until now, of small-clawed otter sightings in Makalu Barun National Park in Nepal’s eastern Himalayas and Kailali and Kapilvastu districts in the western plains.