Studies reveal blondness as an evolutionary advantage

Jeff Yu

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http://www.timesonline.co.uk/article/0,,2087-2058688,00.html

One usually doesn't associate blondeness with increased chances of survival, but read on................
Cavegirls were first blondes to have fun
Roger Dobson and Abul Taher
THE modern gentleman may prefer blondes. But new research has found that it was cavemen who were the first to be lured by flaxen locks.

According to the study, north European women evolved blonde hair and blue eyes at the end of the Ice Age to make them stand out from their rivals at a time of fierce competition for scarce males.

The study argues that blond hair originated in the region because of food shortages 10,000-11,000 years ago. Until then, humans had the dark brown hair and dark eyes that still dominate in the rest of the world. Almost the only sustenance in northern Europe came from roaming herds of mammoths, reindeer, bison and horses. Finding them required long, arduous hunting trips in which numerous males died, leading to a high ratio of surviving women to men.

Lighter hair colours, which started as rare mutations, became popular for breeding and numbers increased dramatically, according to the research, published under the aegis of the University of St Andrews.

“Human hair and eye colour are unusually diverse in northern and eastern Europe (and their) origin over a short span of evolutionary time indicates some kind of selection,” says the study by Peter Frost, a Canadian anthropologist. Frost adds that the high death rate among male hunters “increased the pressures of sexual selection on early European women, one possible outcome being an unusual complex of colour traits.”

Frost’s theory, to be published this week in Evolution and Human Behavior, the academic journal, was supported by Professor John Manning, a specialist in evolutionary psychology at the University of Central Lancashire. “Hair and eye colour tend to be uniform in many parts of the world, but in Europe there is a welter of variants,” he said. “The mate choice explanation now being put forward is, in my mind, close to being correct.”

Frost’s theory is also backed up by a separate scientific analysis of north European genes carried out at three Japanese universities, which has isolated the date of the genetic mutation that resulted in blond hair to about 11,000 years ago.

The hair colour gene MC1R has at least seven variants in Europe and the continent has an unusually wide range of hair and eye shades. In the rest of the world, dark hair and eyes are overwhelmingly dominant.

Just how such variety emerged over such a short period of time in one part of the world has long been a mystery. According to the new research, if the changes had occurred by the usual processes of evolution, they would have taken about 850,000 years. But modern humans, emigrating from Africa, reached Europe only 35,000-40,000 years ago.

Instead, Frost attributes the rapid evolution to how they gathered food. In Africa there was less dependence on animals and women were able to collect fruit for themselves. In Europe, by contrast, food gathering was almost exclusively a male hunter’s preserve. The retreating ice sheets left behind a landscape of fertile soil with plenty of grass and moss for herbivorous animals to eat, but few plants edible for humans. Women therefore took on jobs such as building shelters and making clothes while the men went on hunting trips, where the death rate was high.

The increase in competition for males led to rapid change as women struggled to evolve the most alluring qualities. Frost believes his theory is supported by studies which show blonde hair is an indicator for high oestrogen levels in women.

Jilly Cooper, 69, the author, described how in her blonde youth she had “certainly got more glances. I remember when I went to Majorca when I was 20, my bum was sore from getting pinched”.

However, Jodie Kidd, 27, the blonde model, disagrees with the theory: “I don’t think being blonde makes you more ripe for sexual activity. It’s much more to do with personality than what you look like. Beauty is much deeper than the colour of your hair.”

Film star blondes such as Marilyn Monroe, Brigitte Bardot, Sharon Stone and Scarlett Johansson are held up as ideals of feminine allure. However, the future of the blonde is uncertain.

But unfortunately....
A study by the World Health Organisation found that natural blonds are likely to be extinct within 200 years because there are too few people carrying the blond gene. According to the WHO study, the last natural blond is likely to be born in Finland during 2202.
 
:rotfl: This should be in Humor and Jokes
 
Classic, of course the exotic is a turn on, but to place it as a reason for hair colour dismisses the advantages bilogically inherent in having bLonde hair and fair skin, and an ability to tan:)

I still want to know why Gingers exist they are just freaks;):joke: ah good stuff:)
 
I will dedicate my remaning years to preserving the historic blonde gene. As a fella, my main stratagy....


Sorry.
 
Jilly Cooper, 69, the author

Would this be the well known romantic novelist. Peer review of blondes having more fun?
 
Sidhe said:
Classic, of course the exotic is a turn on, but to place it as a reason for hair colour dismisses the advantages bilogically inherent in having bLonde hair and fair skin, and an ability to tan:)

I still want to know why Gingers exist they are just freaks;):joke: ah good stuff:)

Their pale skin and hair help them survive better in cooler, darker areas (places like Scotland). Basically the reverse to black skin.

And all this time we though the Arian race had to be blonde :rolleyes:;).
 
I don't think it is an evolutionary advantage now, because the Uber blonde fad is kind of over.

Besides, I like women with black hair and brown eyes. ;)
 
The noted neuroscientist V. S. Ramachandran once published a semi-jocular journal article entitled, "Why Gentlemen Prefer Blondes", outlining a speculative explanation of the advantages of being a towhead. I can't remember all of them, but for one he pointed out that men could more easily determine that a blonde is healthy, because her fair colouration would show up any blemishes or bugs in a way that a brunette's would not.
 
Hmm, I'm blond, maybe I can use the threat of our extinction as a way to pick up blond girls. It worth a shot...
 
Lucky cavemen. Imagine, women competing for them and then they get to go out and do the coolest job ever, killing giant animals.
 
Speaking of advantages for blondes, the book Freakonomics put forth that being blonde (for a woman) was roughly equivalent to having a bachelor's degree in terms of the net increase in contacts/emails received through online dating sites. Kind of interesting.
 
I like any hair type, it may not be fashionable, but as you grow older you do learn to see beneath the superficial:) well kind of I am a man after all, you just get to get more control over your hormones, and common sense not lust kicks in. Believe it or not we do eventually learn to tell the vapid harlot from the wiser choice:) eventually it takes time but our "balls" eventually stop playing such a big role in who we like. It's hard to ignore the imprinting but we do:p
 
I read a variant of this idea years ago - basically, as hair turns darker over the years, a blond is clearly probably younger, so a man will be more willing to mate with her, as she can provide more children over the long haul than an older woman (paradoxically, the tendency for monogamy leads to a preference for younger mates, which in turn is ones of the biggest causes of adultery).

I personally, of course, look for more in a woman than gene fitness - but did Ice Age Europeans?
 
Am I the only one finding it hard to believe that all natural blondes will be extinct in 200 years?

Also, why does hair turn darker as you get older? Looking at my old baby pictures, I noticed my hair was light brown as a child but now my hair is very dark brown.
 
In 200 years they will have the human genome all mapped out and you will be able to select the blond gene, or any other genes, right off of a list.
 
Riesstiu IV said:
Am I the only one finding it hard to believe that all natural blondes will be extinct in 200 years?

Also, why does hair turn darker as you get older? Looking at my old baby pictures, I noticed my hair was light brown as a child but now my hair is very dark brown.

I find it hard to believe. Just that I can't find solid evidence against it.

Well, my hair was really really black when I was a baby. Now it's black with a dark reddish tint to it. I blame nutrient defficiency, or an excess of sodium.
 
In 200 years they will have the human genome all mapped out and you will be able to select the blond gene, or any other genes, right off of a list.

I predict that we'll be about 1000x more advanced than this (in this area!), but I agree with h4ppy - killing giant animals would be a cool job.
 
My family all started out blond; my mother's hair started going brown when she was about 30-40, and my dad's hair is nearly black it's such a dark brown now. My sister (23) is still blond, and I'm a brown-blond mix. :crazyeye: I remember reading it's something to do with oestrogen/testosterone levels ... :hmm: don't remember properly.

Hmm, 200 years. I suppose that's (maximum) 13 generations ... - probably more like ~8. Seems very few for such a common allele to become extinct, particularly if it gives advantages like the article suggests. OTOH, hair dye is used such a lot nowdays ...
 
El_Machinae said:
I predict that we'll be about 1000x more advanced than this (in this area!), but I agree with h4ppy - killing giant animals would be a cool job.

I agree. I just said that to point out that the blond gene will not be going extinct as the article claims. ;)
 
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