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

蚂蚁赶走蚜进食之处捕食性昆；谷歌邮箱也帮助我们在收件前远离那些垃圾邮件制造者。

The young aphids that hatch are all female.

孵化蚜幼都是雌性。

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

而有些蚜、蝈蝈、蜥蜴、壁虎、蛇等只进行孤雌生殖。

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

想象你是一只蚜——一种以吸食植物汁液为生小昆。

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自己。

Right now, the aphids have the upper hand.

现在 他眼里只有瓢。

A fully grown ladybug can eat nearly 500 aphids a day.

一只长大瓢每天能吃掉五百只蚜。

Meanwhile, among aphids, losses are not a problem.

然而对于蚜损失根本不是问题。

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.

如果你是蚜，再早繁衍都不算早，它们有些刚生就已经怀孕了。

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

半翅类昆就具有这样刺吸式口器，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.

结果在树叶背面找到成串叫作蚜小子。

The ground is a scary place for an aphid, but it's better than a cow's mouth.

对蚜，地面是个可怕地方，但好过牛嘴巴。

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

但是如何处理番茄植株上蚜呢？

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

结果在树叶背面找到成串叫作蚜小子。

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

蚜以植物为食，并产生甜蜜甘露，然后与蚂蚁交易以保护它们。

By cloning themselves with 'virgin births' and reproducing sexually, aphids maximise their chances of survival.

通过" 单性生殖" 无性繁殖以及有性繁殖，蚜使它们生存机会最大化。

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

这种奇妙繁殖过程让蚜能不用寻找配偶这样就不会浪费任何时间。

You want to wash aphids off with a strong current of water.

你想用一股强水流把蚜冲走。

Gardeners around the world will be upset to hear that - those young aphids just love eating tomato plants!

全世界园艺者们听到这个会很郁闷 —— 那些小蚜喜欢吃番茄植物。