How does a miohippus hind foot differs from a eohippus?

Miohippus and Eohippus, both early ancestors of modern horses, exhibit notable differences in their hind feet. Miohippus has three functional toes with more developed and elongated limbs, indicating a shift towards greater speed and efficiency in movement. In contrast, Eohippus has four toes on its hind feet, with the inner toe being smaller and less functional. This evolutionary progression reflects adaptations to changing environments and lifestyles over time.