Большинство перевозчиков на рынке — это представители микробизнеса и малого бизнеса, а им не хватит средств на растущие издержки, особенно с учетом дополнительных факторов.
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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Costly conservation?
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正月里的湖南湘西十八洞村，气温逐渐转暖，村里热闹非凡。