[by:可可英语～m.moreplr.com]
[00:00.06]The Lycaenids are a group of butterflies known commonly as blues, coppers and hairstreaks. 
灰蝴蝶是一群被认为有着蓝色，紫铜色，并且翅膀上有细纹的蝴蝶，
[00:04.37]Most species of Lycaenid butterflies have evolved close, mutually- beneficialrelationships with different species of ants.
其大部分品种的进化与许多蚂蚁有着亲密无间并且互惠互利的关系。
[00:11.45]A Special Relationship
特殊关系
[00:13.07]The caterpillars of these butterflies develop special glands that secrete a nectar-like substance to attract ants. 
蝴蝶幼虫拥有一种特殊的腺体，它能够分泌如花蜜的甘甜物质来吸引蚂蚁。
[00:19.54]The ants swarm all over the caterpillars, drinking thesecretion. 
蚂蚁将幼虫包围，吮吸这甜美的“蜜”，
[00:23.55]The ants “milk” secretions from the caterpillars by tickling special glands on the caterpillars with their antennas.
同时也用自己的触须挠蝴蝶幼虫的腺体。
[00:30.21]In some Australian species, the attending ants even build thatched or earthen corrals to contain the caterpillars. 
澳大利亚有些种类的蚂蚁甚至修建起“茅草屋”或者是“土畜栏”将幼虫圈起来。
[00:36.49]By day the caterpillars are protected from predators by thecorral and the ants. At night the ants herd the caterpillars up a nearby tree to feed on leaves.
白天的时候，蚂蚁和畜栏保护幼虫不受食肉动物的侵犯，夜晚时，蚂蚁将幼虫搬离到离树近的地方，幼虫便能用树叶充饥。
[00:45.04]The ants are like a private army of bodyguards. Colonies of ants are quite fierce — swarming, biting or even consuming potentialpredators.
蚂蚁就像是私人贴身保镖，并且是十分凶猛的保镖，他们成群结队撕咬甚至是消灭掉潜在的捕食者。
[00:54.13]In fact, the caterpillars’ sweet secretions are not only nutritious, but also contain chemicals that subdue the ants. 
事实上，幼虫的分泌物不仅仅是营养丰富，同时也含有一种能够制服蚂蚁的化学物质，
[01:02.28]Otherwise the ants might kill the caterpillars themselves!Some caterpillars also make drumming sounds to keep their attendant ants alert.
不然的话，蚂蚁也会让幼虫致命。有些幼虫甚至发出鼓声用以警示蚂蚁。
[01:10.46]Unprotected caterpillars would make a tasty treat for insect-eaters like birds, frogs or larger insects. But ants taste bitter or even toxic when eaten. 
未受保护的蝴蝶幼虫对于如鸟类，蛙或者是大一点的昆虫这些食用昆虫的物种来说是一顿美餐。但如果是吃蚂蚁的话，不仅味道苦涩，甚至还是有毒的。
[01:20.08]To most predators, acaterpillar covered in ants is about as appetizing as a candy bar covered in thumbtacks.
在食肉动物看来，被蚂蚁包裹着的蝴蝶幼虫就像是包满图钉的糖果。
[01:26.29]So, the ants benefit from the energy-rich secretions produced by the caterpillars, and the caterpillars benefit from the ants’ protection.
就这样，蚂蚁从幼虫的分泌物中摄取营养，而幼虫也正是有了蚂蚁的保护而健康成长。