So you might see their abdomens connected, but that is what it looks like when butterflies are copulating.

你可能会看到它们的腹部相连，但这就是蝴蝶交配时的样子。

There's not an animal on this planet that will copulate with anything that comes along.

世界上任何一种动物都不会饥不择食地寻找活物进行交配。

Oh, yes. So, the point of this exercise is for you to find someone to copulate with?

噢 是么, 所以这个游戏的重点是帮你找到可以交配的人?

And it just struts on over to the dead crow and jumps on top and copulates with it.

它趾高气扬地向死乌鸦走去，然后跳到死去同伴的身上和它交配。”

In fact, Bailey and Marley will even copulate face-to-face, which is a rarity in monkeys.

事实上，贝利和马利甚至会面对面交配，这在猴子中很少见。

While copulating,   both monkeys will make a pouting face.

交配时，两只猴子都会做出撅嘴的表情。

For you to find someone to copulate with?

帮你找到可以交配的人?

Heaven and Earth copulated, And all things were born.

天道气息降临，地气升腾。天地交合，万物生。

And they'll use one or the other when they're copulating.

他们在交配时会使用其中一种。

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

而且， 只有一旦他们离开了， 他才能与雌性动物繁殖和交配。

The observer female selected a green male regardless of whether they saw copulating females that were older or a similar age.

观察者雌性选择了一只绿色雄性，而不管它们看到的是年龄较大还是年龄相仿的交配雌性。

When observer females saw equal proportions of demonstrator females copulating with green and pink males, the observer females had no mate preference.

当雌性观察者看到同等比例的示范雌性与绿色和粉色雄性交配时，雌性观察者没有择偶偏好。

And they found that males who'd spent an entire day hanging out with ladies—including a chance to copulate—were more peaceable than those who had lacked such contact.

他们发现跟雌性待一整天——包含交配机会——的雄果蝇比缺乏这种接触的更平和。

And that is, fights between males can break out during the act of mating– and fighting while copulating can cause your baculum to … snap.

也就是说，雄性之间的争斗可能会在交配过程中爆发——而交配时的争斗会导致你的阴茎骨… … 折断。

In contrast, if all the demonstrator females were copulating with green males, a hundred percent of observer females went with the majority and chose a green mate.

相比之下，如果所有示威者雌性都与绿色雄性交配，那么 100% 的观察者雌性会与大多数人一起选择绿色伴侣。

After showing a female fly a green male copulating every 15 to 30 minutes several times, the observer female predominantly chose the green male—even after 24 hours passed.

在多次向雌性苍蝇展示每 15 到 30 分钟交配一次的绿色雄性后，观察者雌性主要选择了绿色雄性——即使在 24 小时后也是如此。

For example, when an observer female watched a second female select a green male to copulate with, the observer females overwhelmingly chose a green male when faced with their own mate selection.

例如，当一只雌性观察者看到另一只雌性选择一只绿色雄性与之交配时，雌性观察者在面对自己的配偶选择时绝大多数选择了一只绿色雄性。

I may be an alien, but I have urges. If Amy wants to copulate by firing her eggs into space, well, then, I will happily catch them with the reproductive sac on my upper flermin.

我或许是个外星人，但我也有冲动啊。如果艾米想交配，把卵子发射进太空，那好，我很乐意用我" 上殖器" 的生殖囊兜住它们。

The new study looked at 236 of these macaque males and found that more than 70 percent of them engaged in same-sex mountings, while only 40 percent of those males copulated with females.

这项新研究对 236 只雄性猕猴进行了观察，发现其中 70% 以上进行同性交配，而其中只有 40% 的雄性与雌性交配。

Even though modern genetics might be deflating our romantic notions about lovebirds, from a biological standpoint, pairing up with one individual and then copulating with others on the side makes a lot more sense than absolute sexual loyalty.

尽管现代遗传学可能会让我们对爱情鸟的浪漫概念嗤之以鼻，但从生物学的角度来看，与一个个体配对，然后再兼与其他个体交配，比绝对的性忠诚更有意义。