Pan troglodytes: human family[1], body length 70-92.5 cm, standing height 1-1.7 m, weight 56-80 kg for males and 45-68 kg for females; body coat is short, black, usually with 1 White spots, gray-brown face, gray hands and feet covered with sparse black hair; the nose, ears, hands and feet of the juvenile orangutan are flesh-colored; the ears are extra large, protruding from both sides, the eye sockets are deep concave, the eyebrow ridges are high, and the hair on the top of the head is The back; the hand is 24 cm long; the canines are developed, and the tooth type is the same as that of humans; no tail.