They first turn green when they become adults.

它们变成成虫时先变绿。

The adult size depends on how much food is available.

成虫体型大小取决于食物供给量。

Normally it takes four weeks for hoppers to become adults.

一般说，若虫需要经过4周才能变成成虫。

The reproductive larvae morph into adults and the soldiers die within the host.

繁殖性幼虫发育为成虫，而卫兵死于宿主体内。

All insects also lay eggs. But these eggs do not produce perfect insects.

所有的昆虫都“产卵”，但这些虫卵可不孵出成虫。

The female adult botfly will fly along and she squirts the larvae up the nostrils of the reindeer.

性成虫蝇，把蝇蛆喷到驯鹿的鼻孔里。

After all, it takes only 15 days to produce an adult and you don't even need to parent.

毕竟它们只要十五天就能够长成成虫而且都不用父母照顾。

After a week, an adult wasp appears, leaving its hapless helper's corpse behind.

一周后，黄蜂成虫出现，抛下它那倒霉帮手的尸体远走高。

48 hours later, the first adult will see the light of day.

48小时后成虫就迎着阳光出现了。

But soon this dry case bursts open, and out comes a full-grown fly.

但是很快, 这层干燥的硬壳就破开, 爬出苍蝇的“成虫”。

Many six-legged adults live here, too, without the benefit of the gills.

很多六足成虫虽没有鳃却也在那里生活。

For an entire season, they systematically collected all the adults and even picked up on the caterpillars.

一整季里他们系统地收集所有成虫甚至把毛毛虫都捉起。

And those bigger larvae resulted in bigger adults.

那些更大的幼虫导致更大的成虫。

If exposed to certain substances, axolotls will turn into adults.

如果暴露于某些物质，蝾螈变成成虫。

Adults go in the ground in wooden boxes, placed on top of one another.

成虫放在木箱里，一个叠一个放在地上。

She may have observed the adult moth just as it emerged from its pupa.

她可能已经观察到成虫刚从蛹中出。

The adults beat their translucent wings and take flight as a full-fledged locust swarm.

成虫拍打着半透明的翅膀，像一只成熟的蝗虫群一样翔。

For one, it keeps larvae and adults from competing for the same habitats and food sources.

一方面，它可以防止幼虫和成虫争夺相同的栖息地和食物源。

You see, flies, as with most insects, undergo a complete metamorphosis from egg to adult via a larvae and a pupal stage.

苍蝇，和大多数昆虫一样，经幼虫和蛹的阶段，完成从卵到成虫的完全蜕变。

This lets adult and juvenile traits evolve independently from each other, since caterpillars and butterflies face totally different pressures for natural selection.

这使得成虫和幼虫的性状可以相互独立进化，因为毛虫和蝴蝶面临着完全不同的选择压力。