Musk deer are artiodactyls of the genus Moschus, the only genus of family Moschidae. They are more primitive than the cervids, or true deer, in not having antlers or facial glands, in having only a single pair of teats, and in possessing a gall bladder, a caudal gland, a pair of tusk-like teeth and—of particular economic importance to humans—a musk gland. Moschids live mainly in forested and alpine scrub habitats in the mountains of southern Asia notably Himalayas.