North Sulawesi babirusa Angeles Zoo, South Lakes Safari Zoo, Marwell Wildlife, Audubon Zoo and Chester Zoo. In 2006, a male North Sulawesi Babirusa and a female domestic pig were accidentally allowed to interbreed in the Copenhagen Zoo. The offspring were 5 hybrid piglets with teeth most resembling the North Sulawesi Babirusa, while their colour was highly variable. North Sulawesi babirusa The North Sulawesi babirusa, "Babyrousa celebensis", is a pig-like animal native to Sulawesi and some nearby islands (Lembeh, Buton and Muna) in Indonesia. It has two pairs of large tusks composed of enlarged canine teeth. The upper canines penetrate the top of the
Wild horse cranial and metacarpal differences, indicates the presence of only two subspecies in postglacial times, the tarpan and Przewalski's horse. At present, the domesticated and wild horses are considered a single species, with the valid scientific name for the horse species being "Equus ferus." The wild tarpan subspecies is "E. f. ferus", Przewalski's horse is "E. f. przewalskii", and the domesticated horse is "E. f. caballus". The rules for the scientific naming of animal species are determined in the International Code of Zoological Nomenclature, which stipulates that the oldest available valid scientific name is used to name the species. Previously, when