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

一只长大的瓢每天能吃掉五百只蚜。

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的小昆。

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，它们有些刚出生就已经怀孕了。

Right now, the aphids have the upper hand.

眼里只有瓢。

Meanwhile, among aphids, losses are not a problem.

然而对于蚜来损失根本不是问题。

When you do see pests like aphids, wash them away.

当你看到诸如蚜之类的，把它们洗掉。

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

你想用一股强水流把蚜冲走。

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。

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。

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？

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

通过" 单性生殖" 的无性繁殖以及有性繁殖，蚜使它们的生存机会最大化。

Herding aphids is pretty much the same.

放牧蚜基本也是一样。

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的捕食性昆；谷歌邮箱也帮助我们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。

Well, Clem says they might be pursuing the aphids they eat southward...or maybe they're following the blooms of nectar-rich flowers.

Clem 它们可能追随南方吃的蚜，或者追赶富有花蜜丰富的植物的花期。

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。

The young aphids that hatch are all female.

孵化出来的蚜幼都是雌性。

In the spring, female aphids lay eggs which hatch - break open allowing the young to come out.

春天，雌性蚜会产卵，卵会孵化 —— 破壳让幼出来。

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间。

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

全世界的园艺者们听到这个会很郁闷的 —— 那些小蚜喜欢吃番茄植物。