几名刚刚参与枪战的警员一边试图控制局面,一边进行紧急救援,但与此同时,大量路人从四面八方涌入现场。其中一名警员被叫去处理一把掉落在附近的枪支。
Фото: Александр Вильф / РИА Новости
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Joanne WrittleWest Midlands health correspondent
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.