Ants keep predatory insects away from where their aphids feed; Gmail keeps the spammers out of our inboxes.

蚂蚁赶走蚜处的捕性昆；谷歌邮箱也帮助我们在收件前远离那些垃圾邮件制造者。

See if you can hear the strategy American aphids use to reproduce.

看看你能不能听懂美国蚜繁殖的策略。

But some aphids, katydids, lizards, geckos, and snakes only ever reproduce via parthenogenesis.

而有些蚜、蝈蝈、蜥蜴、壁虎、蛇等只行孤雌生殖。

Nineteenth-century agronomists rapidly divined that phylloxera had come from North America.

19世纪的农学家迅速推断称，根瘤蚜来自北美。

Female aphids can make little, tiny clones of themselves without ever mating.

雌蚜不用交配就能复制很小很小的自己。

Meanwhile, among aphids, losses are not a problem.

然而对于蚜来说损失根本不是问题。

Although it may stop the aphid problem, it will also threaten bees and butterflies.

虽然它可以阻止蚜问题，但它也会威胁到蜜蜂和蝴蝶。

You can't be too young if you're an aphid, some of them are born pregnant.

如你是蚜，再早繁衍都不算早，它们有些刚出生就已经怀孕了。

Insects in the Hemiptera order have piercing-sucking mouthparts and include bed bugs, cicadas, aphids, and leafhoppers.

半翅类的昆就具有这样刺吸式的口器，其中包括臭、蝉、蚜、叶蝉。

Clusters of tiny insects called aphids were to be found on the underside of the leaves.

在树叶背面找到成串的叫作蚜的小子。

The grownups try to toss off their riders, like a mechanical bull at a college bar.

成年蚜会努力把幼甩下来，就像大学酒吧里的机械牛一样。

Imagine you're an aphid, a tiny insect that sucks plant sap for a living.

想象你是一只蚜——一种以吸植物汁液为生的小昆。

One is to spray soapy water onto soft-bodied insects like aphids, spider mites, thrips and whiteflies.

一种是向蚜、蜘蛛螨、蓟马和粉虱等软体昆喷洒肥皂水。

This amazing reproduction process allows aphids to reproduce without wasting any time looking for a partner.

这种奇妙的繁殖过程让蚜能不用寻找配偶这样就不会浪费任何时间。

But how do you deal with the aphids on tomato plants?

但是如何处理番茄植株上的蚜呢？

Clusters of tiny insects called aphides were to be found on the underside of the leaves.

在树叶背面找到成串的叫作蚜小子。

It seems the sex paradox has been solved by one of nature's most ingenious insects - aphids.

关于性的悖论似乎已经被自然界中最聪明的昆一——蚜解决了。

The aphids feed from plants and produce a sweet honeydew, which they trade with the ants for protection.

蚜以植物为，并产生甜蜜的甘露，然后与蚂蚁交易以保护它们。

The young aphids that hatch are all female.

孵化出来的蚜幼都是雌性。

Blocking the action of this, they hoped, would phylloxera-proof all vines. But here the sequencing project produced a disappointment.

他们希望，阻止这一行为可以防止所有的葡萄藤出现根瘤蚜。但基因排序项目的令人失望。