它们产下卵，要孵化整个冬天。
雌鸟伏在蛋上直到其孵化。
这些卵很快孵化成幼虫。
这些蛋就要孵化了。
雌性的卵在沙漠表面下孵化。
其他鸟在孵化破壳时很无助。
有些鸟妈妈甚至会在小鸟孵化之前就教会它们唱歌。
Some mother birds may teach their young to sing even before they hatch.
即使鳄鱼成功地从卵中孵化出来，问题也不会结束。
The problems do not end if crocodiles successfully hatch from the eggs.
蛋壳变得非常薄，以至于在婴儿孵化之前就被打碎了。
The shells became so thin that they shattered before the babies hatched.
尼罗河鳄鱼是通过在其齿腔内轻轻滚动鳄蛋来帮助孵化。
The Nile crocodile rolled its eggs gently in its teeth to help them hatch.
除去它们的藻类，斑点蝾螈的幼仔孵化得更小更不成熟。
Take away their algae, and spotted salamander babies hatch smaller and less mature.
昆虫为生存而精心设计的卵，就挂在父母存放它们的地方孵化。
Engineered for survival, insect eggs hang on and hatch wherever their parents deposit them.
现在你拥有了一些几乎一孵化出来就相当成熟、相当能干的鸟儿。
Now you have some birds that are quiet mature, quite capable, almost as soon as they hatch.
让我们看看新生的鳄鱼或刚孵化的小鳄鱼，以及它们与母亲的互动。
Let's see new-born crocodiles, or hatchlings and their interactions with their mothers.
孵化器提供了一些有趣的项目，它们可能在不久的将来会走向成熟。
The incubator provides some interesting projects that might come to fruition in the near future.
企鹅宝宝开始孵化！企鹅妈妈回来的时候正好看到她的宝宝从蛋里出来。
The babies begin to hatch! The mother penguin returns just in time to see her baby come out of its egg.
蛋大约在十天内孵化，不过，鸭嘴兽的幼仔只有青豆大小，完全无法自立。
The eggs hatch in about ten days, but platypus infants are the size of lima beans and totally helpless.
民族国家似乎是自由的最佳孵化器，虽然他非常清楚其狭隘和排外的局限。
The nation-state, though he was well aware of its parochial and xenophobic limitations, seemed to be liberty's best incubator.
当你阅读这一节的孵化器组件时，要记住的一点是——它们很酷但不完整。
Keep this in mind as you read about the incubator components in this section—they are very cool but incomplete.
我们现在认为恐龙化石被发现时的姿势表明孵蛋的行为，也就是说，坐在蛋上直到蛋孵化。
Dinosaur fossils have been found in postures that we now believe to indicate brooding behavior, that is, sitting on the eggs until they hatch.
现在我们知道，小鸭子孵化后不久，它们就会固定在如鸭子大小的任何物体上，并从此跟随它。
Now we know that, shortly after they hatch, ducklings fix on any object about the size of a duck and will henceforth follow it.
正如预测的那样，在光线下孵化的小鸟主要用右眼寻找食物，而用另一只眼睛观察是否有捕食者。
As predicted, the birds incubated in the light looked for food mainly with their right eye, while using the other to check out the predator.
如果第二年有足够的雨水形成另一个湖泊，卵就会孵化，小虾会再次快速地经历生长、成年、产卵和死亡的循环。
If sufficient rain falls the next year to form another lake, the eggs hatch, and once again the shrimps pass rapidly through their cycle of growth, adulthood, egg-laying, and death.
在许多动物中，以及在诸如果蝇卵的孵化乃至松鼠跑动的转轮这样的生物活动中，这种变化趋势一直受到广泛的研究。
This drift has been studied extensively in many animals and in biological activities ranging from the hatching of fruit fly eggs to wheel running by squirrels.
作为公开项目的一个组成部分，它对任何想做贡献的人的想法和努力成果都是公开的，孵化器提供了一个促使新想法产生的测试机会。
As part of a public project that's open to the ideas and hard work of anyone willing to contribute, the incubator offers a chance to test drive new ideas.
她孵化出了具有强侧向或弱侧向的雏鸡，然后为这两组小鸡准备了隐藏在小鹅卵石中的食物，还制造出假的掠食者飞过头顶的威胁形状。
She hatched chicks with either strong or weak lateralisation, then presented the two groups with food hidden among small pebbles and the threatening shape of a fake predator flying overhead.
五年前，在世界上唯一的梅里克海龟的筑巢地——贝克海滩，发生了一起重大的化学物质泄漏事件，导致当年几乎所有的海龟卵无法孵化。
A major chemical spill occurred five years ago at Baker's Beach, the world's sole nesting ground for Merrick sea turtles, and prevented nearly all the eggs laid that year from hatching.
小虫卵不会再孵化成活虫了。
刚孵化的小鸡可以在出生后几天内就学会模仿妈妈的叫声。
Newborn chicks can then imitate their mum's call within a few days of entering the world.
她甚至没有时间进食——所以她经常在她的蛋孵化后不久死去。
She doesn't even have time to feed herself—so she often ends up dying shortly after her eggs hatch.
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