- Eggs that have remained in the ground for 20 years begin to hatch.
在地下埋藏了20年的虫卵开始孵化 - The young locusts are known as hoppers,
沙漠蝗的若虫是跳跃能手 - for at this stage they're flightless.
在这一阶段 它们还不能飞 - They find new feeding grounds by following the smell of sprouting grass.
它们循着萌发的草香寻找新的用餐场所 - Normally it takes four weeks for hoppers to become adults,
一般说来 若虫需要 经过4周才能变成成虫 - but when the conditions are right as now
但如果条件允许 譬如现在 - their development switches to the fast track.
它们的生长过程就会切换到快车道
They find new feeding grounds by following the smell of sprouting grass. 它们循着萌发的草香寻找新的用餐场所
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