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；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、蛇等只进行孤雌生殖。

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

想象一只蚜——一种以吸食植物汁液为生的小。

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。

Right now, the aphids have the upper hand.

现在 他眼里只有瓢。

Meanwhile, among aphids, losses are not a problem.

然而对于蚜来说损失根本不问题。

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.

如蚜，再早繁衍都不算早，它们有些刚出生就已经怀孕了。

The young aphids that hatch are all female.

孵化出来的蚜幼都雌。

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

半翅类的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.

结在树叶背面找到成串的叫作蚜的小子。

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.

结在树叶背面找到成串的叫作蚜小子。

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

在春天，雌蚜会产卵，然后孵化——让幼破卵而出。

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

蚜以植物为食，并产生甜蜜的甘露，然后与蚂蚁交易以保护它们。

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

对蚜来说，地面个可怕的地方，但好过牛的嘴巴。

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。

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

想用一股强水流把蚜冲走。