Man Had Bone In Penis 95 Million Years Ago Disappeared For Amazing Reason


Author: Clark Tos
2022-10-10 13:59:02

You may not know it, but men had a bone in their penis 95 million years ago. Luckily, scientists have discovered why this bone tissue disappeared.

The baculum is a bone present in the penis of certain mammals, insectivores, rodents or even carnivores. This bone tissue - which facilitates sexual intercourse - is also present in primates (gorilla, chimpanzee), except the man .

Photo credit: illustration image / Istock

However, our ancestors did have a bone in their penis 95 million years ago. Therefore, why did the baculum disappear? A study published in 2016 in the journal Proceedings of the Royal Society B advances a hypothesis.

Monogamy made the penis bone disappear

Did you know ? The common ancestor of primates and carnivores had a penis bone . According to scientists, the latter disappeared during evolution because of the emergence of monogamy.

Photo credit: illustration image / Istock

At the time of Homo erectus, man made the choice to reproduce in this way, thus causing a reduction in the sexual act and the disappearance of the baculum. Against all odds, the bonobo still has a penile bone even though its mating lasts only 15 seconds. The reason ? Sexual competition, of course!

Photo credit: illustration image / Istock

« In primates, monogamous species tend to have much smaller bacula than species where males compete for mating. It would therefore not be crazy to think that the transition to monogamy among our ancestors caused the human baculum to disappear completely. “, explain our colleagues from National Geographic.

As a reminder, the average duration of a sexual intercourse in men lasts on average between one to two minutes.

Source : Proceedings of the Royal Society B