The Asian black bear (Ursus thibetanus, previously known as Selenarctos thibetanus), also known as the moon bear, Asiatic black bear and white-chested bear, is a medium-sized bear s[ecies native to Asia and largely adapted to arboreal life. It lives in the Himalayas in the northern parts of the Indian subcontinent, Korea, northeastern China the Russia Far East, the Honshu and Shikoku islands of Japan, and Taiwan. It is classified as Vulnerable by the International Union for Conservation of Nature (IUCN), mostly because of deforestation and hunting for its body parts.
Asian black bears are similar in general appearance to Brown Bear, but are more lightly built and are more slender limbed. The lips and nose are larger and more mobile than those of brown bears. The skulls of Asian black bears are relatively small, but massive, particularly in the lower jaw. Adult males have skulls measuring 311.7 to 328 mm (12.27 to 12.91 in) in length and 199.5–228 mm (7.85–8.98 in) in width, while female skulls are 291.6–315 mm (11.48–12.40 in) long and 163–173 mm (6.4–6.8 in) wide. Compared to other bears of the genus Ursus the projections of the skull are weakly developed; the sagittal crest is low and short, even in old specimens, and does not exceed more than 19–20% of the total length of the skull, unlike in brown bears, which have sagittal crests comprising up to 41% of the skull's length.
A black bear with broken hind legs can still climb effectively. In contrast to Polar Bears, Asian black bears have powerful upper bodies for climbing trees and relatively weak hind legs which are shorter than those in brown bears and American black bears. They are the most bipedal of all bears, and have bee
Litters, of one to four cubs at a time (though the usual number is two), are born hairless and blind, but a few days after birth they gain their sight and learn to walk. They will stay in their mother’s care for warmth and safety until they are 2 to 3 years old.