Men are getting MORE attractive as Darwin's
'survival of the fittest' evolution theory still holds true for
humans
- Characteristics changing 'mating success' of men changing faster than those that affect women
- Men evolving attractive traits of looks and success to have more partners
- Having more partners ensures DNA passes on
- Mencientists studying people in Finland find evidence that natural selection is still taking place
- Researchers say being rich or poor does not affect success at mating or fertility rates
Relevant: Charles Darwin the naturalist who set out the
theory of evolution
Humans are subject to the forces of natural selection just like any other species, say scientists.
Human customs such as marriage have not slowed the drive of natural selection - and men are evolving traits to increase their mating success, which could include such factors as good looks or even intelligence which might help them achieve success
This is because mating with more partners increases the chance of reproductive success for a man - whereas it doesn't for a woman.
A popular misconception is that humans stopped evolving when they took up farming and embraced monogamy.
But evidence from detailed church records of almost 6,000 Finns born between 1760 and 1849 suggests this is not so.
Researchers looked at economic status, births, deaths and marriages to examine four key natural selection factors.
They were survival to adulthood, mate access, mating success and fertility.
They found that the Finns' natural selection opportunities were on a par with those seen in the wild.
Finland has some of the best available data for such research thanks to detailed church records of births, deaths, marriages and wealth status which were kept for tax purposes.
More...
Differences in early survival and fertility were responsible for most of the variation in fitness, even among wealthy individuals.Dr Virpi Lummaa, from the University of Sheffield's department of animal and plant sciences, said: 'We have shown advances have not challenged the fact that our species is still evolving, just like all the other species "in the wild".
Men are evolving to be more attractive: This is because
mating with more partners increases the chance of reproductive success for a man
- whereas it doesn't for a woman
Current: Charles Darwin made many of his great discoveries
studying animals of the Galapagos Islands
Dr Lummaa said evidence had already proved important selection had been taking place in very recent populations.
She said: 'Humans continue to be affected by both natural and sexual selection.
'Although the specific pressures, the factors making some individuals able to survive better, or have better success at finding partners and produce more kids, have changed across time and differ in different populations.'
The new findings are published in the journal Proceedings of the National Academy of Sciences.
Co-author Dr Alexandre Courtiol, from the Wissenschaftskolleg Institute for Advanced Study in Berlin, Germany, said: 'Characteristics increasing the mating success of men are likely to evolve faster than those increasing the mating success of women.
'This is because mating with more partners was shown to increase reproductive success more in men than in women.
'Surprisingly, however, selection affected wealthy and poor people in the society to the same extent'.
source:mail online
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