By Heidi Harley

science / science - 5 years ago

Sweeping gene survey reveals new facets of evolution

It is textbook biology, for example, that species with large, far-flung populations -- think ants, rats, humans -- will become more genetically diverse over time. "The answer is no," said Stoeckle, lead author of the study, published in the journal Human Evolution. For the planet's 7.6 billion peo...