Asian black bear
Along with sun bears, Asiatic black bears are the most typically used species in areas where bears are either used in performances or as pets. Asian black bears have an outstanding learning ability in captivity, and are among the most common species used in circus acts. According to Gary Brown:
Brown bear
It is thought the Eurasian brown bears which colonized America were tundra-adapted (as many grizzlies are today in North America) and the species is sometimes found around sub-Arctic ice fields. This is indicated by brown bears in the Chukotka Peninsula on the Asian side of the Bering Strait, which are the only Asian brown bears to live year-round in lowland tundra like their North American cousins. Genetics relay that two separate radiations led to today's North American brown bears, one a coastal form that led to the Kodiak bear (from "U. a. beringianus" or a common ancestor) and one an interior form that led to the grizzly bear (from "U. a. lasiotus" or a common ancestor). In Arctic areas, the potential habitat of the brown bear is increasing. The warming of that region has allowed the species to move farther north into what was once exclusively the domain of the polar bear (potentially another offshoot of a radiation of coastal brown bears). In non-Arctic areas, habitat loss is blamed as the leading cause of endangerment, followed by hunting.