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 Ape Man and while he and the police attempt to break into the secret basement entrance, Brewster is attacked by the ape. The ape breaks Brewster's back, killing him. Jeff and Billie leave together, to be met by the odd character who has so inexplicably appeared throughout the film. He is sitting in Jeff's car. When Jeff finally asks who he is, the man replies "Me? I'm the author of the story - screwy idea, wasn't it?" He then rolls up the car window. "THE END" appears on the glass. The film was originally known as "The Gorilla Strikes". Filming began 18