Bears are mutated animals that can be found in the wilderness across the Commonwealth and Far Harbor. They are the distant ancestors of the Yao guai found in the Commonwealth in 2287, and share many similar characteristics. Variants of them are "Bear" and "Bear Cub". Fast, powerful and durable, bears can pose a serious threat to even a well-armed survivor. While territorial, they are not overly aggressive and can usually be avoided, provided a survivor keeps their distance.

FO4 Yao guai