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    Reign of the giant insects ended with the evolution of birds, study finds

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    • Post n°1

    Reign of the giant insects ended with the evolution of birds, study finds Empty Reign of the giant insects ended with the evolution of birds, study finds

    Post  Guest Tue Jun 05, 2012 2:26 am

    Reign of the giant insects ended with the evolution of birds, study finds


    Giant insects ruled the prehistoric skies during periods when Earth's atmosphere was rich in oxygen. Then came the birds. After the evolution of birds about 150 million years ago, insects got smaller despite rising oxygen levels, according to a new study by scientists at the University of California, Santa Cruz.
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    • Post n°2

    Reign of the giant insects ended with the evolution of birds, study finds Empty Re: Reign of the giant insects ended with the evolution of birds, study finds

    Post  macrocephale Tue Jun 05, 2012 2:43 am

    I haven't read the article but what I should say is that the high oxygen levels did not cause the arthropod gigantism in the Carboniferous, studies have shown that high oxygen levels actually suppresses arthropod growth, I'll find the lecture slides/references tomorrow..
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