Unveiled, Why People Have No Bones Penis

See Her Reaction P

Grownnews: London - Believest when we hear the penis has a bone? In fact some living things males do have a penis bone, known also as the os penis or baculum. The bone was not unusual, as it is located at the end of the male sex organ, but is not connected to the other frame structures. Tomcat and male dogs have it.

Likewise, a number of other male mammals, namely chimpanzees, gorillas, weasel, and bears. Walrus has a penis bone exceptional size, can reach a length of 55 centimeters. Quoted by the Washington Post on Thursday (12/15/2016), the bones are even larger in size again in the past. Fossils of an ancient species of walrus penis bone has 1.4 meters. In 2007, the fossil was sold auction up to US $ 8 thousand.

Surprisingly, people do not have a penis bone. There are allegations that some verses of Genesis actually trying to explain bone loss in humans as part of the creation. Two Bible scholars argue that taken from Adam to create Eva is a penis bone, not the ribs.

Human bone loss Penis

A study published Wednesday in the Proceedings of the Royal Society B tries to explain the reasons that people lose bone. According to the standard reproduction primates, humans do not need long to have sex so it does not need a penis bone. Moreover, compared with other primate relatives, the process in humans can be spelled without pressure.

Two researchers from the University College London examines some sexual characteristics primate and carnivore mammals, including features such as polygamy, heavy testes, seasonal mating, and the length of the penis is inside the female's body. In primates, the best estimate whether the male has a penis bone is if the presence of a penis inside the female (intromission) lasts for at least 3 minutes.

There is also a relationship between the length of the long bones intromission of the penis, both in primates and in carnivores.

Penis Bone Brown Bear, Source: Wikimedia

In Conversation, Matilda Brindle, an author of the study, said that "man is not to fall into the category of" prolonged intromission ". The average duration of from penetration to ejaculation in humans men just less than two minutes." But, intromission primates lingered not something romantic. The goal is breeding, not for show. The length of time the penis in the vagina female to male mammals guarantee for that females are mating "with the other before the male sperm fertilize the opportunity."

In 2012, Lauren Reid, an anthropologist at Durham University, said that the penis bone there for several reasons. Bones that provides speed, because the erection is not necessary to wait until the blood flows meet penis. The bone was also "helps males to maintain an erection long enough for sufficient time to penetrate into the female reproductive tract and deliver sperm."

But there is another view. National Geographic reported that, in 2013, Australian researchers suggests that baculum in mice could "stimulate the female reproductive tract" thereby increasing the chances of egg fertilization.

Coming and Going, Silih Changes

Penis bone is present and disappears in the evolutionary history of mammals. Matthew Dean, a biologist at the University of Southern California, told the Washington Post last June, "When asked to a mammal expert, they look to the sky, thought for a moment, and replied that it happened a few times."

The authors of the latest study in this review to track the emergence of a penis bone the first time between 145 and 95 million years ago. Explanation using intromission for more than 3 minutes is not very applicable to large monkeys such as chimpanzees are having sex just a few seconds. Chimpanzee penis bones are also not great, could be as small as 6 millimeters.

Therefore, the competition is thought to be the push factor, according to the researchers at University College London. Chimpanzees mating in high-pressure conditions because chimps are polygamous and tight competition among males once. According to scientists, as being monogamous is capable of mating any time of year, early humans no longer need these bones.

Kit Opie, an anthropologist at University College London and author of the study, said through a press release, "After ancestral humans apart from chimps and bonobos, and mating systems we lead into monogamy at about 2 million years ago, so the evolutionary pressure to continue to have baculum allegedly shrinking. "

"This may be the ultimate against baculum that was already shrinking, so then disappeared entirely on early humans."