In 2000 no aphids had a particular resistance mechanism called mace .

在2000年蚜虫并没有一个叫做mace的耐药机制。

Aphids are unique among animals in their ability to synthesize pigments called carotenoids .

蚜虫在动物中是独特的，因为他们能合成被称为类胡萝卜素的色素。

More impressive , aphids got their ability to make carotenoids through a major shortcut .

更让人惊叹的是，蚜虫们获得这种能力走的是终南捷径。

The researchers noticed that invaders were often mobbed by older , wingless aphids .

研究者们还发现，闯入的捕食者通常都会遭到翅膀脱落的年老蚜虫围攻。

The tiny wasps lay their eggs in the aphids , which are then eaten by the hatching grubs .

体型微小的寄生蜂把卵产在蚜虫体内，幼虫孵化出来之后就会吃掉蚜虫。