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Explainer: What is the molecular clock?

In the 150 years since Charles Darwin recognised the kinship of all life, scientists have worked to fulfil his dream of a complete Tree of Life. Today, the methods used to trace the evolutionary branches back through time ...

dateSep 15, 2015 in Evolution
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Uncovering evolutionary secrets

How did the elephant get its trunk? Or the turtle its shell? How, in general, did the seemingly infinite diversity of complex animal forms on our planet arise? The scientific pursuit of how such "evolutionary novelties" come ...

dateSep 08, 2015 in Evolution
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