The leisurely life of Pan troglodytes

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.
Habitat in tropical rain forests, living in clusters, each group of more than 2-20, led by an adult male. Feeds a lot, eating fruits, leaves, roots, flowers, seeds and bark, some individuals often eat insects, bird eggs or catch duiker, baby baboons and monkeys, and the prey obtained by the male allows members of the group to share. Making simple nests in trees, larger orangutans are more arboreal and can also walk on the ground with slightly curved lower limbs. There is a certain range of activities, with an area of ​​26-78 square kilometers, and the foraging area is often the place where they concentrate. There is communication between groups. They have maintained a mother-son relationship for a long time, and often return to the group to visit their mother after being divided into groups. Have lunch break habits.
The gestation period is 8-9 months, each litter is 1 cub; the lactation period is about 1-2 years, the sexual maturity is about 12 years, and the female can give birth to the 4th litter at the age of 30. Lifespan is about 40 years. Can distinguish different colors and make 32 different sounds. Able to use simple tools, it is the most intelligent animal known after man. Its behavior and social behavior are more similar to human beings, which is of great significance in anthropological research. distributed in central Africa.