Horses have been intrinsically entwined with human history for the past five millennia, acting as an early means of rapid transport and playing a key part in agriculture, warfare and sport.Despite this, major decades-long mysteries have surrounded where and how modern horses were first domesticated. Yet a large international team of zooarchaeologists, historians and geneticists, all experts in horse evolutionary history, has recently started coming up with some answers. The results are showing just how much this can reveal about both the horse itself and about human history and culture—and how much we still have to find out."Horses are perhaps...