"A lot of things have to be scrapped completely and rebuilt from the ground up," she tells the BBC. "In fact, if political constraints did not matter, the best thing to do would be to scrap PDVSA, but that isn't going to happen.
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Now, three researchers at the University of Pennsylvania, Alexander Platt, Daniel N. Harris, and Sarah Tishkoff, have done the converse analysis: examining the X chromosomes of the handful of completed Neanderthal genomes we have. It turns out there's also a strong bias toward modern human sequences there, as well, and the authors interpret that as selective mating, with Neanderthal males showing a strong preference for modern human females and their descendants.
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