The Campanarios de Azaba Biological Reserve in western Spain recently became home to 24 Retuerta horses. They used to roam around the Iberian peninsula in large herds, but now there are barely 200 of the horses left today. (Note: the horses shown here are wild horses, not Rutuerta horses.) The animals can no longer count on human assistance. If they get sick, they die. If they can't find food, they starve to death. If they can't outrun the wolves, they are eaten.