Yes, the horse is actually an American species that expanded into the Old World. The pre-Columbian civilizations (and by that I mean the highly organized socia

Yes, the horse is actually an American species that expanded into the Old World. The pre-Columbian civilizations (and by that I mean the highly organized socially stratified societies that we are aware of) only emerged several millennia after the paleo-Indians hunted horses to extinction, though.