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  • There are 206 bones in the human body, and yes, it's the same for men and women.

  • No, women don't have fewer ribs than men, and men don't have one extra bone, if you

  • know what I mean.

  • You know what I mean.

  • But several mammals, including our close relatives like chimpanzees, do have that extra bone,

  • so today let's talk about why other animals have penis bones while humans got the shaft.

  • It wasn't always this way.

  • Researchers who traced its evolutionary timeline found the penis bone, also known by its scientific

  • and less fun name the baculum, first evolved around 145 million years ago after placental

  • and non-placental mammals split.

  • This means that way back, our ancestors had a baculum, and on the way to being human they

  • lost it.

  • The researchers put that about 1.9 million years ago.

  • Ironically, in the time of Homo erectus.

  • The reason why we lost our baculum may be down to our mating strategy.

  • Baculum length in primates is closely correlated with intromission time, which is how long

  • the penis is inside the vagina.

  • If a primate is going to spend a longer time doing their monkey business, it helps to prop

  • up their banana.

  • What constitutes a long intromission?

  • According to the researchers, 3 minutes, and humans don't quite make the cut.

  • Our average time from penetration to ejaculation is less than two minutes, so it looks like

  • we just don't need the extra support.

  • There are primates like bonobos who copulate for 15 seconds at a time, and yet they still

  • have a baculum.

  • This might be because they're polygamous primates, where many males mate with many

  • females, meaning competition is stiff so they have to be too.

  • In other polygamous species, having a bone in their boner will help keep them copulating

  • longer, so other males don't get a chance with their lady.

  • They are, quite literally, cock blocking.

  • By comparison humans face less competition for mates because of our monogamous mating

  • strategy.

  • And that along with short intromission times may be why our baculum was lost to history.

  • You may think we got stiffed, but I have some news that'll pick you up.

  • Penis bones come in all shapes and sizes, and while some of them are impressive and

  • slightly terrifying, like the 2 foot baculum of the walrus, plenty of them aren't.

  • Chimps, for example, have a baculum about the size of your fingernail.

  • In fact even without the extra skeletal bone, humans still have the biggest penises of the

  • great apes.

  • So, you know what, I don't miss it.

  • Great news!

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  • For more on that crazy walrus baculum watch Carin talk about it on Wild Sex, here.

  • Make sure you subscribe for more videos and remember

  • Gorillas, with all their chest-thumping, only have a 2.5 inch penis.

  • Showing yet again, that we are all compensating for something.

  • Thanks for watching and I'll see you next time on Seeker.

There are 206 bones in the human body, and yes, it's the same for men and women.

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Why Don’t Humans Have a Penis Bone?

  • 4 1
    joey joey posted on 2021/04/14
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