One theory is that bipedality evolved in conjunction with the nuclear family: monogamous parents cooperating to care for their offspring.

有一种理论认为，两足动物的进化与核心家庭有关：一夫一妻制的父母合作照顾他们的后代。

youdao

Prairie voles live in family groups consisting of a monogamous mated pair and their offspring.

一对单配偶的橙腹田鼠及其子女组成家庭，一起生活。

youdao

It is easier to pander to their ideal of the monogamous Kenyan family than to confront the difficult reality of widespread extra-marital sex.

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His family life is impeccably monogamous and progenitive.

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Much of the oxytocin research to date has been done on prairie voles, monogamous rodents that will release oxytocin only when touching a family member, Pollak says.

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