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
The Hairy Ape The Hairy Ape The Hairy Ape is a 1922 expressionist play by American playwright Eugene O'Neill. It is about a beastly, unthinking laborer known as Yank, the protagonist of the play, as he searches for a sense of belonging in a world controlled by the rich. At first, Yank feels secure as he stokes the engines of an ocean liner, and is highly confident in his physical power over the ship's engines and his men. However, when the rich daughter of an industrialist in the steel business refers to him as a "filthy beast", Yank undergoes a crisis of identity