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When human females are pregnant, they're advised to stay away from alcohol, for fear of harming the fetus.
當(dāng)人類女性懷孕時(shí)，人們就會(huì)建議她們戒酒，以免傷害胎兒。
And most parents refrain from giving their infants bottles full of whiskey or beer, for obvious reasons.
大多數(shù)父母都不會(huì)給嬰兒接觸滿瓶的威士忌或者啤酒，原因是顯而易見(jiàn)的。
But if you're a fruit fly, literally dousing your offspring in alcohol is apparently one of the best ways to protect them from danger, particularly from certain types of wasps.
但如果你是一只果蠅，毫不夸張的說(shuō)，你把后代浸沒(méi)在酒精中是保護(hù)它們遠(yuǎn)離危險(xiǎn)的最好辦法之一，特別是這樣能避免黃蜂的傷害。
How and why?
如何以及為什么要這樣做？
Let's back up a bit.
讓我們來(lái)回顧一下。
First, certain types of wasps prey on fruit flies by injecting eggs inside fruit fly larvae.
首先，特定類型的黃蜂會(huì)將卵注入果蠅幼蟲中，以捕食果蠅。
Unless an infected larva kills the wasp egg, it hatches and the wasp larva eats its way out from inside the fruit fly larva, killing it.
除非受感染的果蠅幼蟲殺死黃蜂卵，否則當(dāng)黃蜂卵孵化出來(lái)后，黃蜂幼蟲將會(huì)由內(nèi)而外吞噬果蠅幼蟲，將其殺死。
One way for fruit fly moms to protect against this gruesome fate is to lay their eggs in an alcohol soaked environment, such as fermenting fruit, when they see that parasitic wasps are around.
果蠅媽媽為防止幼蟲遭受厄運(yùn)的其中一種辦法是，當(dāng)看到寄生蜂的出現(xiàn)時(shí)，將卵產(chǎn)在酒精浸泡的環(huán)境之中，例如發(fā)酵的水果里。
Although alcohol is toxic to fruit flies, it's even more toxic to wasps, which, unlike fruit flies, have not evolved a high level of alcohol tolerance.
盡管酒精對(duì)果蠅有毒，但酒精對(duì)黃蜂的毒性更大。與果蠅不同，黃蜂還沒(méi)有進(jìn)化成對(duì)高濃度酒精的耐受性。
So if the larvae eat enough alcohol rich food, it can kill the wasp egg and keep it from hatching.
所以如果果蠅幼蟲吃了足夠富含酒精的食物后，它就可以殺死黃蜂卵并使之不能孵化。
Apparently, fruit flies are not the only fly species to use alcohol to protect their young.
很明顯，果蠅并不是利用酒精來(lái)保護(hù)幼蟲的唯一的蠅類。
In fact, it seems that most flies that eat rotting fruit use the alcohol defense against wasps.
實(shí)際上，大部分的蒼蠅都會(huì)食用腐爛水果，利用酒精來(lái)防御黃蜂。
So fruit flies are not unique in this regard, but they're still mighty impressive.
所以果蠅在這方面并不獨(dú)特，但它們?nèi)匀涣钊擞∠笊羁獭?
