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:
Mammals of Olympic National Park
The American black bear ("Ursus americanus") is North America's smallest and most common species of bear. It is a generalist animal, being able to exploit numerous different habitats and foodstuffs. The American black bear is listed by the IUCN as least concern, due to the species widespread distribution and a large global population estimated to be twice that of all other bear species combined.