The Siberian weasel, also known as the Manchurian weasel or kolonok, is a small carnivorous mammal native to East Asia. There are a few synonyms for this species, including the Siberian polecat, the Korean weasel, and the Himalayan weasel. These names reflect the weasel's distribution across a wide range of habitats, from the mountains of the Himalayas to the forests of Siberia and the Korean peninsula. While the Siberian weasel is not well known outside of its native range, it plays an important ecological role as a predator of rodents and other small animals, helping to regulate the populations of many other species.