Wild horses are free-roaming equines that live in various regions around the world. They are descendants of domesticated horses that returned to the wild. These animals typically form herds, which are social groups that help protect them from predators and provide companionship. The most well-known wild horse in North America is the Mustang, which has adapted to survive in diverse environments. Wild horses primarily graze on grasses and other vegetation, and they play an important role in their ecosystems by helping to maintain the health of grasslands.