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 were found to meet the criteria. As more streams were assessed, the number of Class A Wild Trout Waters grew rapidly. By 2005, there were 436 Class A Wild Trout Waters, totaling . By the end of 2008, there were 487 such stream sections, which together included of streams. By 2014, there were 510 Class A Wild Trout Waters, comprising of streams. In the 2010s, the fact that the Pennsylvania Fish and Boat Commission was considering adding seven urban streams to its list of Class A Wild Trout Watersthus ending stocking therecaused some criticism by anglers who believed that this