Human friends may come and go, but a horse could be one of your most loyal, long-term friends if you treat it fight. Horses understand words better than expected, since horses can hear the human voice better than even dogs can, due to their particular range of hearing.And scientists predict that trainers could have greater success if they use more verbal commands in their horse training programs. Horses possess excellent memories, which allow horses to not only recall their human friends after a long period of separation but also to remember some complex human instructions for ten years or more. The bonds with humans are likely an extension of horse behavior in the wild, since horses value their own horse relatives and friends, and are also open to new, nonthreatening acquaintances. Horses maintain long-term bonds with several members of their family group, but they also interact temporarily with members of other groups when forming herds.