Apes are smarter than monkeys, they have well-developed breasts, no tails, and are close relatives of humans. There are two types of great apes, one is the small ape (gibbon) and the other is the great ape (chimpanzee, gorilla, orangutan).
When many children go to the zoo or watch some ape movies, they always do not understand the actions and expressions of these apes. Today, let's take a look at what these action expressions of the great apes represent.
Show off: What's the eye? Haven't seen a handsome guy?
↑This stout Sumatran orangutan looks smart, flaunting its impressive convexity and throat pocket. Male orangutans do not develop secondary sexual characteristics until they are about 12 years old. At this time, they weigh about 90 kilograms.
Yawning is a threat: have the guts to come and try it!
↑ Male lowland gorilla yawning is indicative of threat. Gorillas also provoke by looking directly. If this is not successful, the male gorilla will stand, roaring and pounding his chest while tearing the plants around him.
Roar: So excited!
↑ Chimpanzees have very rich facial expressions. An excited chimpanzee will open its mouth widely when it roars.
Friendly submission: Dude, let's get high!
↑ Some of the other facial expressions of chimpanzees have little to do with their voices. For example, if they close their lips tightly, they are in a state of panic; if they retract their lips, revealing their closed teeth and pink gums, it means that they are threatening an intruder or competitor. When they pout their lips (above) it may indicate friendliness or submission.
Declare territory possession: Alien boys, don't invade!
↑This Malayan gibbon seems to be swallowing a large piece of cheese. But in fact, this part of the bulge in its throat is the throat bag. When males and females perform a "duet" with their calls, the throat pouch bulges. Gibbons use their cries to declare possession of their territories. Females and males also use their calls to reinforce their relationship with each other.
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