Why people do not have bones in the penis

Most primates and carnivores have baculum, a bone formed in the connective tissue of the penis, but our ancestors lost it millions of years ago, unlike chimpanzees, bears, and most other mammals. Recent studies have shed light on this phenomenon.
The gut bone or baculum developed in mammals about 145 and 95 million years ago. People lost it because they do not have long sex. Primates who mate for three minutes or more tend to have large baculum, compared with animals whose sexual intercourse was less than three minutes. The average duration of a person’s sex is about two minutes. Unlike us, the night lemur copulates for about an hour and has a very long chute bone.

baculum

Long baculum is also seen in species of polygamous mating system and seasonal reproduction. While polygamous mating does take place in humans, this is not enough for the formation of a chute bone.

Another reason for the absence of baculum in the human body is that the mating system takes place throughout the year and is less competitive than other animals.Chimpanzees, in which sexual contact lasts about seven seconds, have a very small baculum. However, in monkeys, the polygamous mating system, in which the female copulates with several males per day, if she is agitated.

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Chimpanzee testicles are very large - about the same size as their brains - because they produce a lot of sperm for mating with several females. The testes of a person are slightly smaller, which indicates that we do not have so many sexual contacts. Probably, the monogamous mating system was the reason for the absence of baculum in humans.

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  • Why people do not have bones in the penis

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