Fossil Of your cave bear (Ursus spelaeus), a relative from the brown bear and polar bear from the Pleistocene epoch in Europe The subfamily Ursinae professional a dramatic proliferation of taxa about 5.3–4.5 Mya, coincident with main environmental changes; the first users with the genus Ursus appeared around this time. https://www.youtube.com/channel/UCCoZfLHRsYsRsVHqS-CSAWA