Ape years ago (Mya) the clades diverged into newer clades. The lesser apes are the gibbon family, Hylobatidae, of sixteen species; all are native to Asia. Their major differentiating characteristic is their long arms, which they use to brachiate through trees. Their wrists are ball and socket joints as an evolutionary adaptation to their arboreal lifestyle. Generally smaller than the African apes, the largest gibbon, the siamang, weighs up to ; in comparison, the smallest "great ape", the bonobo, is . Formerly, all the great apes except humans were classified as the family Pongidae, which conveniently provided for separating the human
Ape Canyon Ape Canyon Ape Canyon is a gorge along the edge of the Plains of Abraham, on the southeast shoulder of Mount St. Helens in the state of Washington. The gorge narrows to as close as eight feet (2.5 m) at one point. The name alludes to a reported encounter with several "apemen" in 1924, an event later incorporated into Bigfoot folklore. Ape Canyon was heavily impacted by the 1980 eruption of Mount St. Helens. Adjacent to the steep rocky canyon is the present Ape Canyon trail, popular with hikers and mountain bikers. On the south side of the mountain is