Apes, like humans, are intelligent and highly imitative, and can form complex small groups, ranging from gibbons to large apes of the family of humans— orangutans, chimpanzees, gorillas, and humans. Although apes and Old World monkeys have similar nose and dentition structures and are grouped together as a narrow-nosed suborder, they are different in many ways. The ape's skeleton is suitable for sitting or standing upright. Old World monkeys do not, their lower vertebrae fused to form a coccyx, and the spine is short, the chest is barrel-shaped, and the shoulders and wrists are very flexible.
Apes in action though except humans. All ape arms are longer than legs, but only the arms of red orangutans and gibbons are longer than the trunk. Orangutans have a head-to-body length of about 1.5 meters, but their arms are spread out by more than 2.2 meters. Gibbons leap by arm, using their arms to swing from one branch to another. Orangutans do not leap by arm, but can climb slowly through the woods with their hands and feet and limbs. Chimpanzees are on the ground 3/4 of the time. But in the trees, it will move with an arm. Gorillas are predominantly ground-dwelling and rarely climb trees.

Clever apes
Groups of apes are organized in different ways. A male and a female, gibbons, live with their offspring, and a group of up to 6. They overlap with the orangutan's domain and therefore meet occasionally, forming a loose relationship, but the male usually forages alone, while the female usually lives only with its single cub.
Chimpanzees have a population of 40 to 80 individuals, but they rarely meet at the same time, usually in small groups to forage for food. Gorillas are a male, polyheroditic system, consisting of a dominant male or gorillas, and possibly one or two lower-ranking adult males and several female orangutans and their offspring. At least 20 million years ago, gibbons and great apes evolved into distinctly different families. It is said that chimpanzees and humans are closest by blood, and until about 6 million years ago, they all had a common ancestor. Large apes seem to be able to solve problems like humans. Chimpanzees and orangutans in the wild are known for their ability to make tools, and at animal research centers, all the large apes have learned to use instruments and identify them in mirrors. Large apes exhibit a concept of themselves, and some also learn to recognize and use symbols, such as sign language.
Orangutans are the only large apes in Asia and the largest arboreal mammal in the world. They rarely climb to the forest floor. When active in the forest. Will shake themselves in this tree. Until it can grab another tree. Every night, the orangutan makes an elaborate nest in the canopy of a tree. And sleep with a cover of plants.
About four or five years ago, the animal protection group Orangutan Survival Foundation revealed one thing. In a small rainforest village in Borneo, Indonesia, local villagers caught a orangutan pony, and instead of keeping it or eating it, they locked it up with chains, shaved all the hair on their bodies, and forced it into prostitution.
Yes, the orangutan became a sex slave for local villagers. Long-term sexual abuse even makes it form a conditioned reflex, as long as it sees someone approaching, it will automatically turn around.
Gorillas (scientific name gorilla) live in Africa. Gorillas are the largest primates. Male gorillas have silver-gray back hairs as they get older, which is known as the "silver-backed gorilla", they are very strong and have huge canine teeth. The average person may think they are ferocious, however, in fact gorillas are mild vegetarians.
Chimpanzees (scientific pan, English name chimpanzee) live in Africa. Black, relatively small. They look cute, but they are much more ferocious than gorillas and hunt other monkeys to eat. (The more human-like, the more ferocious?) alas...... )
Chimpanzees are animals closest to humans. Humans are also the closest animals to chimpanzees. That is to say, the relationship between chimpanzees and humans is much closer than that of chimpanzees and gorillas, and much closer than that of chimpanzees and orangutans.
Humans and chimpanzees separated about six million years ago. The two chimpanzees separated about a million years ago. The common ancestor of humans and chimpanzees separated from gorillas about seven million years ago. The common ancestor of humans, chimpanzees, and gorillas separated from orangutans about 14 million years ago.