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Ljudska evolucija se ubrzava

 
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igor
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PostPosted: Tue Dec 11, 2007 16:07    Post subject: Ljudska evolucija se ubrzava Reply with quote

U posljednjih 5 tisuća godina genetske promjene javljaju se sto puta češće nego u bilo kojem drugom vremenskom periodu, zbog čega se ljudska evolucija sve više ubrzava. Nova studija profesora Henrya Harpendinga sa sveučilišta Utah ukazuje kako se promjene najbrže događaju u Europi, Aziji i Africi te su specifične za svaki kontinent, zbog čega ljudi postaju sve različitiji. Dva su razloga zbog kojeg se geni danas brže mijenjaju, smatra Harpending. Prvi razlog je ogromna populacija koja omogućuje više varijacija, a drugi su promjene u klimi i prehrani.

http://news.bbc.co.uk/2/hi/science/nature/7132794.stm
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