An ancestor of modern horses, Mesohippus was an important developmental stage in horses’ family line. They had not yet developed hooves and walked on three-toed feet. Mesohippus was a small, primitive horse that was about the size of a labrador retriever. These early horses were grazers that lived in North America and had to contend with predators like the cat-like nimvarids and other large carnivorous mammals called Hyenadons.
An ancestor of modern horses, Mesohippus was an important developmental stage in horses’ family line. They had not yet developed hooves and walked on three-toed feet. Mesohippus was a small, primitive horse that was about the size of a labrador retriever. These early horses were grazers that lived in North America and had to contend with predators like the cat-like nimvarids and other large carnivorous mammals called Hyenadons.