Evolutionary changes came swiftly 530M years ago, study finds

09/12/2013 | ScienceMag.org

By combining evidence from the fossil record with genetic clues in living species, scientists have estimated the speed of the so-called Cambrian explosion, when the number and diversity of Earth's life forms ballooned 530 million years ago. Researchers studied the evolution of arthropods through fossil records and found that they were evolving new traits four times faster during the dawn of modern creatures than they did in following eras, according to the study published online in Current Biology.

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