How long do horses live?
Horse
Periodically, populations of horses in isolated areas are speculated to be relict populations of wild horses, but generally have been proven to be feral or domestic. For example, the Riwoche horse of Tibet was proposed as such,[134] but testing did not reveal genetic differences from domesticated horses.[138] Similarly, the Sorraia of Portugal was proposed as a direct descendant of the Tarpan based on shared characteristics,[139][140] but genetic studies have shown that the Sorraia is more closely related to other horse breeds and that the outward similarity is an unreliable measure of relatedness.[139][141]