The last wild horses aren't truly wild

摘要

When it comes to wild claims, hold your horses. Considered to be the only living equines never domesticated, free-roaming Przewalski's horses of Central Asia (shown below) have a tamed ancestor, a genetic analysis of ancient horse bones finds. That makes Przewalski's horses feral, not wild. The analysis also debunks the idea that these same domesticated ancestors, known as Botai horses, gave rise to all other modern horses, leaving the progenitors of today's domesticated horses a mystery, research-ers report online February 22 in Science.