Fossil with the cave bear (Ursus spelaeus), a relative from the brown bear and polar bear through the Pleistocene epoch in Europe The subfamily Ursinae knowledgeable a spectacular proliferation of taxa about 5.three–four.5 Mya, coincident with big environmental alterations; the initial users of your genus Ursus appeared all-around this time. https://www.youtube.com/@Kidsland2k