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An adult locust eats its entire body weight every day.
成蟲(chóng)每天的進(jìn)食量相當(dāng)于自己的體重
And a whole swarm can consume literally hundreds of tonnes of vegetation.
而整團(tuán)蝗蟲(chóng)云能消耗掉數(shù)百噸植物
They have to keep on moving. The swarm travels with the wind.
它們必須不停地遷徙。沙漠蝗御風(fēng)而行。
It's the most energy-saving way of flying.
這是最省力的飛行方式
Following the flow of wind means that they're always heading toward areas of low pressure.
隨著風(fēng)向遷徙，意味著它們總是飛向低壓地區(qū)
Places where wind meets rain and vegetation starts to grow.
那里正是風(fēng)雨交加的地方，植物定能生長(zhǎng)
As they fly, swarms join up with other swarms to form gigantic plagues
在飛行過(guò)程中，一團(tuán)蝗蟲(chóng)云也會(huì)和其它蝗蟲(chóng)云匯合，從而形成巨大的災(zāi)害，
several billion strong and as much as 40 miles wide.
無(wú)數(shù)“瘟神”組成的大軍綿延長(zhǎng)達(dá)40英里
They will consume every edible thing that lies in their path.
它們將把一路上能吃的東西全部吃得精光
This is one of planet Earth's greatest spectacles.
這是地球上最壯觀的景象之一
It's rarely seen on this scale and it won't last long.
很少能看見(jiàn)如此大的規(guī)模，而且也不會(huì)持續(xù)多久。
Once the food has gone, the steady roar of a billion beating locust wings
待到食物耗盡之時(shí)，無(wú)數(shù)蝗蟲(chóng)拍打翅膀時(shí)的喧嘩將不復(fù)存在，
will once again be replaced by nothing more than the sound of the desert wind.
再次取代它的只是沙漠中呼嘯的風(fēng)聲。
