草原田鼠作为一种社会性生物,它是仅存3%的“一夫一妻制”哺乳动物中的一类。
The prairie vole is a sociable creature, one of the only 3% of mammal species that appear to form monogamous relationships.
Trivers-Willard 假说提出:贫穷的母亲更容易生女孩。 我们将其应用到一个研究母亲状况的新方法中—即在一夫多妻制家庭中妻子的地位。
We apply the Trivers-Willard prediction - that mothers in poor condition will overproduce daughters - to a novel measure of condition, namely wife rank within a polygynous marriage.
不像其他的鱼类,它们是一夫一妻制并终生厮守。
Unlike most other fish, they are monogamous and mate for life.
You'll be lukewarm about polygamy.
你们可能对一夫多妻制无所谓。
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