Prezwalski's horse is virtually extinct in its native Mongolian habitat because of overhunting and the spread of the human population. People are still searching for the small Mongolian herd to which this wild horse may belong. Because many domestic horses have interbred with Prezwalski's horses, it is believed that this small herd may contain the only pure wild horses left in the world!
For centuries, Chinese and Mongolian hunters killed small numbers of these horses for food. Later, modern rifles enabled them to kill many more of these animals. By 1879, Prezwalski's horses were already in danger of becoming extinct.
In an attempt to save these animals, 32 of these horses were captured to form the breeding stock that would eventually populate zoos of the world. Scientists were concerned the offspring might become weakened because the parents were too much alike. In 1947 zoo workers looked for other Prezwalski's horses but found only one stallion. Today, most of the 1000 wild horses born in the world's zoos are descendants of this one horse. Over 100 zoos raise herds of Prezwalski's horses.
If the wild Mongolian herd is ever found, zoos hope to introduce the captive animals back into their native habitat to roam free in the Gobi Desert.