North Sulawesi babirusa a subfamily, Babyrousinae, that branched off from the warthog branch of the pig family (Subfamily Phacochoerini) during the Oligocene or early Miocene. The North Sulawesi babirusa has a head-and-body length of and weighs up to . It is virtually hairless (easily revealing its greyish skin), and the tail-tuft is also nearly hairless. In males, the relatively long and thick upper canines are strongly curved. They emerge through the roof of the snout, while the long lower canines emerge through the side of the mouth. The upper canines can grow backwards in a curve until they penetrate the skull of the
Buru babirusa data on "B. babyrussa", it is generally assumed that its habitat and ecology are similar to that of "B. celebensis" (north Sulawesi babirusa). Furthermore, as all babirusas were considered conspecific under the scientific name "B. babyrussa" until 2001, data collected before that is consistently listed under the name "B. babyrussa", though the vast majority actually refers to "B. celebensis" (by far the best known species of babirusa). Babirusas tend to occupy tropical rainforests, river banks and various natural ponds rich in water plants. They are omnivorous and feed on various leaves, roots, fruits, invertebrates and small vertebrates. Their jaws and