As noted in an article in the journal Science, menopause had previously been described only in humans and five species of cetaceans.
The authors do not rule out that long post-reproductive life is a characteristic feature of female chimpanzees, but it is not observed in most populations, since they have suffered greatly from human activity.
Similarities with humans are manifested in appearance, body size, method of movement and the structure of various organ systems. The brain is large (volume about 700 cm3), there are grooves and convolutions.
The tail is missing. The blood types of great apes are identical to those of humans.
In the vast majority of parameters, humans are closest to chimpanzees, in smaller numbers to gorilla, orangutans are even further from us, and gibbons are even further away.
Moreover, in terms of the mass of their properties, chimpanzees are more similar to humans than to orangutans, no matter how strange this may sound to a person who pays attention only to appearance.
Chimpanzees reach sexual maturity at eight to ten years of age and have a lifespan of approximately 50 to 60 years.