Did You know...

[Bocefish]

...that human penises used to have a spine?

http://news.nationalgeographic.com/...ome-science/?source=link_tw20110309news-penis

Christine Dell'Amore
National Geographic News
Published March 9, 2011

Men have lost the DNA code that once made human penises spiny, according to a new analysis of the human genome.

Penile spines, which are still present in several modern animals, are usually small barbs of keratin—a type of hard tissue—that line the outside of the organ.

The prehistoric male enhancement existed in the common ancestor of chimpanzees and humans, which lived about six million years ago, according to the gene analysis.

But the "penile spine enhancer" code disappeared from human genes before our common ancestor split into modern humans and Neanderthals about 700,000 years ago, said study co-author Gill Bejerano, a developmental biologist at Stanford University in California.

 

[LadyLuna]

Is it bad, that all I can think about is how much that would hurt?

 

[SatanJonez]

I think this post could have been understood without the ape cock pic. But yeah, I agree with Luna, ouch. I tried to imagine fucking a dude with a literal "boner" & could only thing of using a really, hard plastic toy. Eek.

 

[Bocefish]

I think this post could have been understood without the ape cock pic.

That came directly from the nat geo site. It's not like I went looking for ape cock images, lulz. Visual aids put things in better perspective for some people. I would imagine it also hurt like hell smackin' that thing on branches running through the jungle.

 

[SatanJonez]

I think this post could have been understood without the ape cock pic.

That came directly from the nat geo site. It's not like I went looking for ape cock images, lulz. Visual aids put things in better perspective for some people. I would imagine it also hurt like hell smackin' that thing on branches running through the jungle.

LOL! I kind of figured you weren't like "OH I MUST FIND APE COCK PICS NAO!!!!!!" But yeah, just waking up, was totally caught of guard. Mostly at how small it was.

 

[Runts]

There are lots of mammals with penis bones.

Good think for Pfizer and all the other boner-med makers that we lost our somewhere down the evolutionary chain!

 

[AlexLady]

It's to remove the sperm from the previous male who fucked the female.


We've had ancestors which used to have the spines, sure, but humans/homosapien sapien never did. By the time we were "human" they were long gone.

 

[galactic6]

There's been some research that suggest the unusual shape of the human penis is useful for displacing other semen that may be in the vagina.
http://www.scientificamerican.com/article.cfm?id=secrets-of-the-phallus
Competition among males for access to females is only part of the problem. Sperm competition is just as big a factor. There's all kinds of research showing men in monogamous relationships produce less sperm and it's not as motile. Even little jealousy things like the female away on a business trip can increase sperm count and motility.

 

[Runts]

I remember watching a sex documentary on the BBC while I was in London a few years ago that showed video of sperm from one man attack sperm from another.

Apparently some sperm are impregnators and some are defenders.

Whodathunk.

 

[Bocefish]

There are actually 3 types of sperm, check out the video. :mrgreen:

http://www.spike.com/video-clips/7dmfnv/manswers-whats-in-your-ball-sack

 

[AndyG61]

I always think my boss is a bit of a spineless dick - and now I can see he is just a process of evolution. :roll:

 

[galactic6]

There are actually 3 types of sperm, check out the video. :mrgreen:

http://www.spike.com/video-clips/7dmfnv/manswers-whats-in-your-ball-sack

I've got my new motto . . . "Die foreign splooge!" :violence-pistoldouble: bscene-sexualspermmagenta: :violence-fencing: :violence-snipersmiley: bscene-sexualspermblue: :violence-rambo: