"Anthro" is short for "anthropomorphic." Anthros are humanoid, but with animal characteristics. For instance, an anthro might have a cat's fur, ears, whiskers, tail, and claws, but be otherwise human. Anthros can be mixtures of different animals, too - for example, Arax, a snake/cat anthro, has scales, fangs, and snake eyes, with scaled cat ears and a scaled tail. Overall they are fairly common, although individual types might be rare. Anthros typically live in small clans, and can be as varied as colors in the rainbow. Their skills and occupations are typically matched to their animalistic characteristics, and their personalities are usually suited as well. The origin of anthros is unclear, but it is believed they appeared around when humans did.