1. Strong Legs and Hooves: Horses developed strong legs and hooves that allowed them to run quickly and efficiently across open grasslands, escaping predators and finding food. These features also enabled them to travel long distances for grazing and migration.
2. Specialized Teeth: Horses evolved high-crowned teeth designed for grazing. These teeth are durable and able to grind down tough grasses, allowing them to efficiently consume the fibrous vegetation that dominates their diet.
3. Social Structure: Horses are highly social animals, living in herds with a complex social hierarchy. This social structure provides protection from predators and ensures the successful raising of young. The ability to communicate through vocalizations and body language helps maintain the herd's unity and cooperation.