Are Humans Still Evolving? [The Scientist] Whether or not humans could continue to evolve after adopting an agrarian, monogamous lifestyle has been hotly debated, said co-author Alexandre Courtiol. Monogamy, for example, limits the numbers of kids people have, and thus reduces the variation in reproductive success among individuals, while agriculture helps buffer people from environmental selection pressures by allowing them to stockpile food. Thus, monogamous, farming humans have a drastically reduced the potential for evolution, Courtiol explained. But some biologists feel that these factors wouldn’t abolish selection pressures altogether, and that humans continue to evolve today.
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