Every Horse Has a Distinctive Personality

The complexity of human and horse interaction reflects the fact that every horse, like every human, has a distinctive personality. Horses have strong likes and dislikes—particularly of some other horses and of certain people, as any pair of riders who have tried to ride two horses holding a grudge against each other will know. Horses are social animals in a way that other herd animals are not. They cooperate, compete, and play with one another, much like us. They live comparatively long lives, twenty or thirty years, and their life phases correspond to some extent to our own. They form enduring bonds with other horses, and are capable of forming such attachments with humans. This social aspect of horses is closely studied today, since many urban owners leave their horses alone in stables, ride them rarely, and discover later that the horse suffers from isolation, not only from their owners but also from other horses. They lose their social skills, and can be quite difficult or even dangerous to ride. Similar concerns are rarely expressed about the social skills of sheep or goats. Put another way, as the relationship between horses and humans evolved over the prehistoric centuries, the bond between the two became essential for the well-being of both.

— Raiders, Rulers, and Traders, Chapter 1