Babirusa actually pierce the flesh in the snout. All species of babirusa are listed as threatened by the International Union for Conservation of Nature (IUCN), shown on their Red List since at least 2010 and current in 2017. The genus is monotypic within the subfamily Babyrousinae, or alternatively considered to form a tribe, Babyrousini, of the subfamily Suinae. To date, only one fossil skull has been found to suggest a larger ancestor. All members of the genus were considered part of a single species until recently, the babirusa or pig-deer, "B. babyrussa", but following the split into several species, this scientific
Wild water buffalo International Commission on Zoological Nomenclature placed "Bubalus arnee" on the "Official List of Specific Names in Zoology", recognizing the validity of this name for a wild species. Most authors have adopted the binomen "Bubalus arnee" for the wild water buffalo as valid for the taxon. Only a few DNA sequences are available from wild water buffalo populations. Wild populations are considered to be the progenitor of modern domesticated water buffalo, but the genetic variation within "B. arnee" is unclear, and also how they are related to the domesticated river and swamp forms. Wild water buffalo The wild water buffalo ("Bubalus