Ursus rossicus[1] is an extinct species of bear that lived in the steppe regions of northern Eurasia and Siberia during the Pleistocene.

[2] The small cave bear had a very broad, domed skull with a steep forehead.

Its stout body had long thighs, massive shins and in-turning feet, making it similar in skeletal structure to the brown bear.

[4] U. rossicus dental specimens when separated into groups of different ontogenetic stages do not show significant variations in microwear, suggesting the diets of these bears stayed fairly constant over the course of their lifetimes.

Results obtained on the stable isotopes of cave bear bones also point to a largely vegetarian diet in having low levels of nitrogen-15 and carbon-13,[7] which are accumulated at a faster rate by carnivores as opposed to herbivores.