Blocking testosterone during that same early period causes rough play to plummet.

在同样的早期阶段阻止睾丸激素会导致粗暴行为的发生率急剧下降。

And there, study after study shows that these girls do have an increased preference for rough play.

并且，大量的研究表明，这些女孩确实更喜欢粗暴的玩耍。

(Laughter) And according to one mom, rough play in boys is also something we should probably reconsider.

（笑声）而且据一位妈妈说，我们或许也应该重新考虑男孩的粗暴玩耍行为。

So in females, in rats and monkeys anyway, jacking up testosterone during that early developmental period causes rough play to increase dramatically.

因此， 对于雌性大鼠和猴子来说，在早期发育时期睾丸激素的升高会导致粗暴玩耍行为急剧增加。

However, in the lab, they've shown that maybe male babies like to do a little bit more rough and tumble play, right?

然而，在实验室中，他们已经表明，也许男婴儿喜欢做更多的打闹游戏，对吗？

So, for instance, depriving male rats of the kind of rough play they want leads to adult male rats who never learned how to manage their aggressive impulses.

举例来说，剥夺雄性老鼠想要的粗暴玩耍的权利，会导致成年雄性老鼠永远学不会如何控制自己的攻击冲动。