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Evolutionary cause of facial hair pattern?

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Evolutionary cause of facial hair pattern?

Postby fourwynds » Wed Oct 01, 2008 9:03 am

Why is it common for beard growth to be restricted to a "W" shape under the mouth, for most men? i.e. there is usually (although not in every case) small areas under the mouth on the left and right, that do not grow any or very few hairs. Obviously this is genetic, but is there an underlying reason in evolution or in facial anatomy to cause this?

For example, we still have eyebrow hair which helps keep sweat from dripping into our eyes, so what possible reason do most men have these "bald" patches under their mouth ????

This question has been raised following a major cancer fundraising event in the UK where men grow facial hair for a month.

goatee example.jpg
If your not sure what area of the face I mean - look at this!
goatee example.jpg (8.37 KiB) Viewed 48726 times
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Re: Evolutionary cause of facial hair pattern?

Postby downwithpeople » Wed Oct 22, 2008 9:52 pm

For centuries thoughtful men have stroked this region whilst deep in contemplation - thus wearing the hair completely off. Women find intelligent, thoughtful men attractive. In the past, women noticed that the most intelligent men in the tribe did not have hair in this region and thus it became a desirable trait. Over time natural selection favored men who could not grow hair in this area - resulting in the facial hair characteristic that is so common today. Time for another drink.
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Postby MichaelXY » Wed Oct 22, 2008 10:03 pm

lol, thats a good one...
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Postby AstusAleator » Thu Oct 23, 2008 8:27 pm

It's where our sabre-teeth used to project over our lower lip
What did the parasitic Candiru fish say when it finally found a host? - - "Urethra!!"
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Re: Evolutionary cause of facial hair pattern?

Postby phillydrifter » Sun Dec 14, 2008 11:46 am

Very interesting theory (rubbing our chins in thought over centuries wore the hair away and then maidens found it attractive that some men were that thoughtful). I suppose that would also explain how, addition of course to not having whiskers grow beneath the left or right sides of my lower lip, I also don't have any slightly beyond that, i.e. if i grew a full beard, my mustache would never 'connect' with the rest of my beard.

I stumbled onto this page (stumbleupon.com) and was intrigued by the article so I made an account so I could comment. Thanks for this site.

How often do religitards come in here proclaiming that hundreds of years of study are untrue and instead invoke supernatural deities to explain what science has been doing for the last few millenia?

Also just because I recently found out, I was born exactly 413 years after Galileo. :) That fact made me smile very much when I found out.
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Re: Evolutionary cause of facial hair pattern?

Postby MichaelXY » Sun Dec 14, 2008 12:22 pm

How often do religitards come in here proclaiming that hundreds of years of study are untrue and instead invoke supernatural deities to explain what science has been doing for the last few millenia?


Unless you have A.D.D. more times than you can shake a stick at...

But I would not condone the less than favorable label you chose to use...
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Postby alextemplet » Mon Dec 15, 2008 4:34 am

Labels like that tend to prove a lot more about the speaker than whoever is being spoken about.
Generally speaking, the more people talk about "being saved," the further away they actually are from true salvation.

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Re: Evolutionary cause of facial hair pattern?

Postby AlphaNoN » Tue Dec 16, 2008 12:04 am

I don't mean to sound too crude, but it may be relevant. Cunnilingus. Women may have favored men who didn't leave a rash in the wake of sexual gratification ;)
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Postby misterzed » Tue Dec 16, 2008 6:31 pm

If you look at it from the other direction of why do you need it in this area? its maybe simply not useful...
If you think of a huge beard thats not been cut the area might be covered adequately by the rest of the beardage.

Although tool use and shaving must have been around for a significant time (like neolithic? flint shaving gear.. ow..)

Interesting question though, wonder what sort of localised variation there is to it?
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Postby alextemplet » Tue Dec 16, 2008 7:08 pm

Yeah, I cannot imagine shaving with flint. Talk about serious razor burn.
Generally speaking, the more people talk about "being saved," the further away they actually are from true salvation.

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Re: Evolutionary cause of facial hair pattern?

Postby Tony89 » Sat Dec 20, 2008 5:30 am

It can't be that people stroked their hair away. This has no genetic effect. It is an alteration to the body after the person was born. It is the equivalent of saying that if you shave your head and all your kids shave their heads and their kids shave their heads and this happens for generation after generation eventually they will produce children who are bald.
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Re: Evolutionary cause of facial hair pattern?

Postby alextemplet » Sat Dec 20, 2008 9:51 pm

Tony89 wrote:It can't be that people stroked their hair away. This has no genetic effect. It is an alteration to the body after the person was born. It is the equivalent of saying that if you shave your head and all your kids shave their heads and their kids shave their heads and this happens for generation after generation eventually they will produce children who are bald.


Read over this again. What was suggested was that, once this became a desirable fashion statement, natural selection favored men who could not grow hair in this region, and it became the common genetic trait it is today.
Generally speaking, the more people talk about "being saved," the further away they actually are from true salvation.

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