Scientists have proven the need for men – Economic News

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 Culture News, 10:23:50

British scientists have proved that it is useless in terms of male and competition exists between them in order to maintain the stability of the genome and screening of harmful mutations.

This is the conclusion scientists have come after a decade of observing the sexual life of beetles, beetle, informs news.eizvestia.com.

«Almost all multicellular organisms on Earth reproduce through sex but the very existence of this phenomenon is not so easy to explain, since this form of reproduction shall be for a lot of hardships. The most obvious of these is the fact that only half of your offspring – daughters – could produce children. Why do any kind of animal to expend energy on sons? “- Said Matthew Gage of the University of the West of England in Norvik (UK).

Gage and his colleagues found that the development of all multicellular beings controlled by two factors: gender and natural selection.

In the natural selection of only the strongest survive, and this leads to the appearance of such decorations as the tails of peacocks or scallops roosters.

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With respect to sexual selection scientists have different points of view. Some believe that this selection will help the population prilovchilis to sharp changes in habitat conditions. Others believe that sexual selection can help protect against degeneration and maintain competitiveness.

In order to reach a consensus group of scientists led by Gage and watched all ten years of the beetles beetle.
From the first Beetles group survived in the face of fierce sexual competition (one female was nine males).
In the second group was monogamy, the number of males and females was the same.

Conclusion: sexual selection exists and it is very important for population. So, a group of monogamous beetles died out by the 10th generation, and in the group with high competition – 20-ty generations.

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«In order to beat the competition and attract the attention of females, the beetle must be able to cope with almost any task, and therefore sexual selection is an effective filter to maintain and improve the genetic health of the population. Our study is the first direct evidence that sex is the dominant form of reproduction because of these genetic advantages, “- concludes Gage.

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