Some groups that had descended from the same parent population were no longer reproductively compatible—they had evolved into separate species.

一些由同一亲本群体进化而来的群体在繁殖上不再相容——他们进化成了不同的物种。

youdao

The second parent is picked at random from the parent population.

另一个双亲是 随机地从双亲人群中挑选的。

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recombine() uses the List::Util shuffle() function to shuffle the parent population.

recombine() 使用 List::Util shuffle() 函数来随机组合亲本种群。

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One family in five in social housing is headed by a single parent, triple the percentage of the population at large.

ECONOMIST: Urban policy

Ms. LINDA REEDY (Gay Parent): It's as if a whole segment of the population of the country and maybe the world are telling me personally that I'm not fit to be a parent, when I know that every day, my whole life is about being a parent.

NPR: Religious Exemption Sought for Gay Adoption Law

Nymex Holdings (nyse: NMX - news - people ), the parent of energy trading giant New York Merc, is slashing costs over the next three months, specifically targeting the population of its trading floor, which has seen volume dwindle as more contracts are traded through an electronic alliance with the Chicago Mercantile Exchange (nyse: CME - news - people ).

FORBES: Trading Partners