Bacculum, Penis Bone, Humans, Mammals, Evolution, The Guardian, British, Scientists

Why Don’t Humans Have a Penis Bone? via The Guardian

Spoiler alert: monogamy ruins everything.


 

This article out of the Guardian is actually from December, but only triggered my google alerts about all things peenor this past week. Who knows why I had to wait for such relevant information, but I’m glad to have it now. Though it’s already started to make me wish I had a penis bone. ☹

 

Why don’t humans have a penis bone? Scientists may now know

Science editor

Wednesday 14 December 2016

It can be as long as a finger in a monkey. In the walrus, it can be two feet long. But the human male has lost it completely. And researchers are a little stumped.

Known as the baculum to scientists with an interest, the penis bone is a marvel of evolution. It pops up in mammals and primates around the world, but varies so much in terms of length and whether it is present at all, that it is described as the most diverse bone ever to exist.

Prompted by the extraordinary differences in penis bone length found in the animal kingdom, scientists set out to reconstruct the evolutionary story of the baculum, by tracing its appearance in mammals and primates throughout history.

They found that the penis bone evolved in mammals more than 95 million years ago and was present in the first primates that emerged about 50 million years ago. From that moment on, the baculum became larger in some animals and smaller in others. The stump-tailed macaque, an animal that weighs only 10kg, has an extremely long baculum for its size, with the bone extending for 5cm. The bone is five times the size of the baculum in the collared mangabey, which is a slightly larger monkey.

Kit Opie who ran the study with Matilda Brindle at University College London, said that penis bone length was longer in males that engaged in what he called “prolonged intromission.” In plain English, that means that the act of penetration lasts for more than three minutes, a strategy that helps the male impregnate the female while keeping her away from competing males. The penis bone, which attaches at the tip of the penis rather than the base, provides structural support for male animals that engage in prolonged intromission.

In chimps, the penis bone is no longer than a human fingernail. The tininess of the bone correlates with the very short spell that the male spends mating, in the order of seven seconds. In chimpanzee groups, females mate with all the males, in what appears to be a strategy to reduce the risk of her children being killed by older males. “It gives each male an idea that they may have fathered the subsequent offspring, and it is in her interests to get that done quickly,” Opie said.

Humans may have lost their penis bones when monogamy emerged as the dominant reproductive strategy during the time of Homo erectus about 1.9 million years ago, the scientists believe. In monogamous relationships, the male does not need to spend a long time penetrating the female, because she is not likely to be leapt upon by other amorous males. That, at least, is the theory.

Read the full article at the Guardian.com


 

 

I mean, that’s kinda bummer news right? The baculum essentially provided a rock solid, endless boner whenever necessary, without having to wait for traditional arousal to do all the heavy lifting. We’re essentially doing this same thing with various viagras and sildenafils. Wouldn’t it all be easier if we had literal bones to keep it up?

 

-t

 

 

 

 


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6 Comments on "Why Don’t Humans Have a Penis Bone? via The Guardian"

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K/L
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Maybe that’s why man invented cock-rings *wink*

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Sigistrix_Elric
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Fun fact: Badger bacula were the favored make of tie clip for Victorian & Edwardian British Gentlemen.

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[…] talked about my fetish for google alerts here before, and last week seemed to be a promising reward to the constant monitoring of phrases […]

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Unless you work at a dick factory, literally nothing on this blog is safe for work. So heads up: you’re gonna see penises, butts, general nudity, depictions of sexual interactions, and me saying words like dong, cock, wang, peenor, peen, jizz, bust, bate, fuck, stroke, and ballback, ad nauseam.



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