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

但是很快, 这层干燥的硬壳就会破开, 爬出来苍蝇的“虫”。

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，经历幼虫和蛹的阶段，完到虫的完全蜕变。

And those bigger larvae resulted in bigger adults.

那些更大的幼虫导致更大的虫。

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

一方面，它可以防止幼虫和虫争夺相同的栖息地和食物来源。

Over the following weeks, her larva hatches, bores into the cockroach, eats it alive, pupates in its carcass, and emerges as an iridescent adult.

在接下里的几周内，幼虫孵化，钻蟑螂的躯体，活蟑螂，在它的尸体中化蛹，再以虫的形态闪亮登场。

The locusts now transform into winged adults, and with conditions as good as this, they do so three times faster than normal.

蝗虫正在变态为有翅的虫，由于生长环境良好，它们发育的速度达到平时的三倍。

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

这使得虫和幼虫的性状可以相互化，因为毛虫和蝴蝶面临着完全不同的自然选择压力。

A dense, smoky hand flew out of the tip of it and vanished—the ghost of the hand he had made worm-tail.

一只浓密的、烟雾缭绕的手它的尖端飞出，消失了——那只被他弄虫尾巴的手的幽灵。

Estimating the PMI in this case relied on analyzing the life cycle of flies through development from egg to adult can be predicted based on environmental conditions.

在这种情况下，估计 PMI 依赖于分析果蝇到虫的生命周期，可以根据环境条件行预测。

Insects hatch from eggs, and although some insects hatch as basically small versions of the adults of their species, others go through an incredible change before adulthood.

昆虫是由孵化而来的，虽然有些昆虫在孵化时，幼虫就是同类虫的微缩板，但有些昆虫在年之前会发生翻天覆地的变化。

Certain variations can only appear at corresponding ages; for instance, peculiarities in the caterpillar, cocoon, or imago states of the silk-moth; or, again, in the full-grown horns of cattle.

某些变异只能出现在相应的年龄；例如，蚕蛾的毛虫、茧或虫状态的特殊性； 或者，再一次，在牛的熟角中。

The unity of much of the morphogenesis of organisms from fertilized egg to adult began to be unraveled after the discovery of the homeobox genes, first in fruit flies, then in other insects and animals, including humans.

在同源盒基因的发现之后，受精到虫的生物体形态发生的一致性开始被解开。同源盒基因首先在果蝇中发现，然后在其他昆虫和动物中发现，包括人类。

What actually happens when a caterpillar morphs into a winged marvelous adult is so flippin' cool, some of nature's most remarkable biological processes and all of that mind blowing stuff happens in this part that the book just skips over.

当毛毛虫变有翅膀的奇妙虫时，实际发生的事情是如此酷，自然界一些最非凡的生物过程和所有令人兴奋的事情都发生在这一部分，这本书只是跳过了。