And so he said, if you start off with a male and a female, at the end of one month they have an offspring. Let's assume they have two offspring. At the end of the next month let's assume those offspring have offspring. Again a male and female.

在13世纪的时候想要计算兔子的数量,就是一个月大的兔子,再过一个月就可以进行交配,所以它说如果你一开始有一公一母两只兔子,在一个月末它们就可以生小兔子,让我们假设它们生了两只小兔子。

麻省理工公开课 - 计算机科学及编程导论课程节选

Moreover, only once they're out of the way can he reproduce and copulate with the females.

只有把它们除掉,它才可以跟雌狮交配，繁殖。

耶鲁公开课 - 心理学导论课程节选

Indeed, they press the lever and they'll stop eating, they're no longer interested in sex.

事实上它们不按断杠杆以至停止进食，不再对交配感兴趣。

耶鲁公开课 - 死亡课程节选

And the guys said, "Well, you know, The rooster works very hard " The rooster has sex dozens of times a day" " And she said, "Well, be sure to tell that to the president" The story goes, the president went around, the guy tells the story to the president The president asks the man, "Huh Has sex dozens of times each day ?" Same hen every time?"

那人回答说，“那只公鸡很卖力的,每天交配好几十次“,她就说“确保把这告诉总统“,然后总统走过来，那人也跟总统说了这事,总统问他,“每天交配几十次,是和同一只母鸡吗“

耶鲁公开课 - 心理学导论课程节选