Common Rat-like Hamster

About this species

Range

Siberia, northeastern China and the Korean Peninsula

The common rat-like hamster, Tscherskia triton, is more widely called the greater long-tailed hamster. It is the sole living species assigned to Tscherskia, within the hamster subfamily Cricetinae. W. E. de Winton described it in 1899 from northern Shandong, and historical catalogues list numerous regional synonyms. Its moderately long tail and comparatively large body underpin the English names, but unsupported measurements are not repeated here (Mammal Species of the World; Wikipedia, general species account).

Its native distribution runs from the upper Ussuri region through northeastern and northern China to the Korean Peninsula; a camera trap documented a northern-range record in Khabarovsk Krai in 2021. Behavioural research reports strong aggression in males during both breeding and non-breeding periods, while female aggression is concentrated mainly outside the breeding season. Laboratory work has also documented spontaneous daily torpor under winter-like short-day and cold conditions (Wang et al. 2006; Mammalian Science 2025; Mammal Species of the World).

Description: Wildlife of Korea guide, Wildlife of Everywhere (wildlifeofeverywhere.com); general species information paraphrased from Wikipedia (CC BY-SA)