The horses, which are the size of a large pony and sometimes called a Przewalski's or Mongolian wild horse, used to only exist in captivity and are reproducing with the zoo's support, the Star Tribune newspaper in Minneapolis reported Friday.
The horse was delivered July 5 and is parented by a stallion at the National Zoo in Washington and a German female, the newspaper said.
Minnesota Zoo officials said they sent a stallion to the Netherlands 18 years ago, where it reproduced six times in Hustai Nuruu National Park in Mongolia.
Records indicate two harems descended from the stallion exist in the wild there. In the 1960s, the horses were extinct in the wild, the newspaper said.