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2016-05-17. Humans are still evolving—and we can watch it happen.

posted May 25, 2016, 1:08 PM by Alan Gould
By Elizabeth Pennisi, Science. For GSS Losing Biodiversity chapter 4. Excerpt: Many people think evolution requires thousands or millions of years, but biologists know it can happen fast. Now, thanks to the genomic revolution, researchers can actually track the population-level genetic shifts that mark evolution in action—and they’re doing this in humans. Two studies presented at the Biology of Genomes meeting here last week show how our genomes have changed over centuries or decades, charting how since Roman times the British have evolved to be taller and fairer, and how just in the last generation the effect of a gene that favors cigarette smoking has dwindled in some groups....  http://www.sciencemag.org/news/2016/05/humans-are-still-evolving-and-we-can-watch-it-happen