因为通常只有一只雌性在一个特定的幼虫中产卵，所以它只会产生一只雄性，因为这只雄性可以在孵化时使它所有的姐妹受精。
Since only one female usually lays eggs in a given larva, it would pay her to produce one male only, because this one male could fertilize all his sisters on emergence.
这只雄性海鸥和家里的三只猫一起长大，他不光睡宠物小窝，还分享猫食。
He not only slept in pets' beds but also ate cat food out of a bowl with the cats.
试验的第三阶段，是在原先放雌性白领姬鹟的笼子里放入新的雄性白领姬鹟，并测量盒子里的雄性白领姬鹟对这只新出现的雄性白领姬鹟的攻击行为。
In the third phase of the experiment a male was placed in the cage over the box where the female had once been, and the amount of aggression towards this male from the nesting male was measured.
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