Przewalski's horse (, , ) ("Equus przewalskii" or "Equus ferus przewalskii") also called the takhi, Mongolian wild horse or Dzungarian horse, is a rare and endangered horse originally native to the steppes of Central Asia. At one time extinct in the wild, it has been reintroduced to its native habitat since the 1990s in Mongolia at the Khustain Nuruu National Park, Takhin Tal Nature Reserve, and Khomiin Tal, as well as several other locales in Central Asia and Eastern Europe. The taxonomic position is still debated, with some taxonomists treating Przewalski's horse as a species, "E. przewalskii", others as a subspecies of wild horse ("E. ferus przewalskii") or a feral variety of the domesticated horse ("E. f. caballus"). It is named after the Russian geographer and explorer Nikołaj Przewalski.