評論
打印
Researchers in the UK classified more than 2500 mammalian species as either solitary, socially monogamous, or as group living, which is when several breeding females live together.
英國的研究人員分類整理了在多個正處于孕期的雌性動物一起生活時，獨居動物，實行一夫一妻制的動物，和群居動物等2500多種哺乳類動物的行為。
Then, for the socially monogamous species, they analyzed data from closely related species and discovered that, in each case, the females used to be solitary and territorial, and that infanticide was rare and therefore couldn't have led to monogamy.
他們分析了實行一夫一妻制物種的近親數據，發現在每一種情況下，雌性動物都是獨居的，并且有很強的領地意識，殺嬰行為幾乎沒有，因此不可能促使一夫一妻制的形成。
Then why did monogamy evolve?
那么一夫一妻制是如何進化的呢?
The current thinking is that monogamy evolved as a mate guarding strategy in species where females lived alone too far apart for a single male to monopolize access to more than one female at a time.
當前的推論是，當雌性動物距離太遠，雄性動物無法同時占據兩個及兩個以上的雌性動物時，雄性動物出于保衛配偶的目的，出現了一夫一妻制。
So monogamy enabled males to pass on their genes more reliably.
因此一夫一妻制可使雄性更穩定的傳遞他們的基因。
譯文為可可英語翻譯，未經授權請勿轉載!
