evolutionary trend :

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evolutionary trend

  • n  a general direction of evolutionary change
News & Articles

  • How Aquatic Sloths Adapted to Their New Life in the Sea
    For four million years, Peru's ocean shores hosted several species of large aquatic sloths. Now, fossils tell the story of critters that gradually became more aquatic - in essence, reversing the evolutionary trend that saw our distant ancestors emerge from the sea and colonize the land.        
    March 12, 2014 - Wired News

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