Where did grizzlies come from?

Grizzly bears, scientifically known as Ursus arctos horribilis, are a subspecies of the brown bear that evolved in North America. Their ancestors are believed to have migrated from Eurasia across the Bering land bridge during the Pleistocene epoch. Over time, they adapted to diverse habitats in North America, particularly in western regions like Alaska and Canada. Today, they are a symbol of wilderness and biodiversity in these areas.