So now we're on metamorphosis stage three, where the caterpillar is now a pupa.

现进入蜕变阶段三，毛毛虫变成蛹。

Each pupa will produce a magnificent butterfly.

每个蛹都会变成一只炫丽的蝴蝶。

I am hurrying to Montreal with these pupas to participate in a wonderful event.

带着这些蛹要赶回蒙特利尔去参加一个奇妙的盛事。

It takes at least eight days for a fly to go from an egg to a pupa.

一只苍蝇从卵变成蛹至少要八天。

The large queen, along with her precious larvae and pupae, are kept safe and dry in the middle.

蚁后和她珍贵的幼虫以及蛹，被安全干燥地保存中间。

This cleans them and kills the pupa inside.

这会清洁并杀死里面的蛹。

One more molt exposes the hard exterior of the pupa.

又一次蜕皮暴露了蛹坚硬的外表。

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来。

Once they are fully grown, the caterpillars will attach themselves to the underside of a leaf or branch and form a pupa, or chrysalis.

毛毛虫一旦完全长大，就会附着树叶或树枝的底部，然后形成蛹或者茧。

The larva is fed by the working bees, and in a few days it makes for itself a hard skin, and is called a pupa.

工蜂负责给幼虫喂食。几天之后, 会长出坚硬的皮肤, 这就是蛹。

And if you thought the run up to the pupa stage was weird, just wait, things get even stranger and cooler from here.

如果你认为发展到蛹阶段很奇怪，就等着吧，事情从这里变得更加奇怪且酷。

Inside a tunnel, ball, or pat, once the larvae hatch, they consume the dung before metamorphosing into a pupa and then an adult beetle.

通道、粪球或粪块之内，一旦幼虫孵化出来，会以粪为食，直至成蛹，之后发育成为成年蜣螂。

An insect lays an egg, which changes first into a grub or cater-pillar, then into a pupa or chrysalis, and lastly into an insect.

昆虫产卵, 然后孵化为幼虫或毛虫, 再变成蛹并最终生长为昆虫。

" She would sit up all night until they came out of the pupa so she could draw them, " she said.

“她会整夜不睡， 直到从蛹中出来， 这样她才能画出， ” 她说。

Thanks to all the energy and protein stored up during the larva phase, the pupa is physiologically self-sufficient and lives off the nutrients it consumed as a caterpillar.

由于幼虫阶段储存了所有的能量和蛋白质，蛹生理上是自给自足的，并以毛毛虫所消耗的营养为生。

And while the pupa may seem vulnerable, this immobile stage can actually be a good way to pass parts of the year when food is scarce.

虽然蛹看起来很脆弱，但这个不动的阶段实际上是度过一年中食物匮乏的部分时间的好方法。

Those hormones tell cells to activate digestive enzymes to break apart the cell's proteins and other parts, and the pupa recycles this protein to fuel the rest of metamorphosis.

这些激素告诉细胞激活消化酶来分解细胞的蛋白质和其他部分，蛹回收这种蛋白质来促进剩余的蜕变过程。