A man and his son perform with a bear for money in a street in Rawalpindi, Pakistan, on Nov. 5 2010. The Asian black bear (Ursus thibetanus), also known as the Moon bear or White-chested bear, is a medium-sized species of bear, largely adapted for arboreal life, which occurs through much of southern Asia, Korea, northeastern China, the Russian far east and limited parts of Japan. It is classed by the International Union for Conservation of Nature (IUCN) as a vulnerable species, mostly due to deforestation and active hunting for its body parts.