| Przewalski's Horse, also known as the Mongolian Wild Horse, or Takhi, is the closest living relative of the Domestic Horse. Poliakov, who concluded that the animal was a wild horse species, gave it the official name Equus przewalskii (Poliakov 1881). However, authorities differ about the correct classification. Some hold it is a separate species, the last remnant of Equus ferus, others hold it is a subspecies of Equus caballus. The question will only be answered with finality if or when the common ancestor from which domestic and Przewalski's horses diverged is determined.Although the Przewalski's horse has 66 chromosomes, compared to 64 in a domestic horse, the Przewalski's horse and the domestic horse are the only equids that cross-breed and produce fertile offspring, possessing 65 chromosomes
As of 2005, the world population of these horses was about 1,500, all descended from 31 horses that were in captivity in 1945, mostly descended from approximately 15 captured around 1900. A cooperative venture between the Zoological Society of London and Mongolian Scientists has resulted in successful reintroduction of these horses from zoos into their natural habitat in Mongolia, and as of 2005 there is a free-ranging population of 248 animals in the wild. Wikipedia, the free encyclopedia.
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