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
Class A Wild Trout Waters up more than 75 percent of the total wild trout biomass. The criteria for rainbow trout are considerably simpler: the only requirement is that the biomass of wild rainbow trout less than long must be at least . There is only one stream in Pennsylvania that is Class A Wild Trout Waters for brook trout and rainbow trout: Roaring Run. There are several rankings with lower biomass requirements in the Pennsylvania Fish and Boat Commission's classification system: Class B Wild Trout Waters, Class C Wild Trout Waters, Class D Wild Trout Waters, and Class E Wild Trout Waters. The Pennsylvania