1) Mythological hybrid 
In Greek mythology, Ipotanes were a race of half-horse, half-humans. The Ipotanes are considered the original version of the Centaur. The typical Ipotane looked overall human, but had the legs, hindquarters, tail, and ears of a horse. However, some had human-like rather than horse-like legs (compare with early Satyrs, whose front legs were often h...