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Ursus is a genus in the family Ursidae (bears) that includes the widely distributed brown bears, the polar bear, and black bears. The name is derived from the Latinursus, meaning bear.
U. t. gedrosianus – Baluchistan bear or Pakistan black bear
U. t. japonica – Japanese black bear
U. t. laniger – Himalayan black bear
U. t. mupinensis – Indochinese black bear
U. t. thibetanus – Tibetan black bear
U. t. ussuricus – Ussuri black bear
A hybrid between grizzly bears and polar bears has also been recorded. Known commonly as a pizzly, prizzly, or grolar bear, the official name is simply "grizzly–polar bear hybrid".