Mesohippus Jumping
Mesohippus
Mesohippus was a greyhound-sized horse that lived from the early Chadronian to Whitneyan (39-30 mya) in the central Great Plains of North America. This tiny creature was just as gracful as modern horses, but it had three toes per foot instead of one. Unlike modern horses, Mesohippus had low crowned (brachyodont) teeth.