They lay eggs that incubate through the winter.
它们产下卵，要孵化整个冬天。
它们下蛋——很大的蛋。
They lay eggs along the way and die.
它们途中产卵，然后死去。
他们下蛋吗？
Some of the fish are fertile, for they lay eggs.
一些鱼多产是因为它们孵卵。
If insects paid attention to such advertisements, they might be prompted to lay their eggs on a duller, and presumably less resistant host.
如果昆虫注意到这样的广告，这可能会促使它们将卵产在一个更迟钝、据推测更不会抵抗的寄主上。
Fishes are caught when they are on the way upstream to lay eggs.
鱼群在前往上游产卵的途中被捕获。
They dig out nests in the riverbed and lay their eggs.
它们在河床上挖巢产卵。
However, they are, in one respect, less fully given back to the water than whales or dugongs, for turtles still lay their eggs on beaches.
然而，从某种程度上讲，海龟并没有像鲸鱼或儒艮一样完全回到水中生活，因为它们依旧在海滩上产卵。
Ichthyosaurs also resembled cetaceans in another way: unlike most living reptiles, which lay eggs, they gave birth to live young.
鱼龙和鲸类的另一点相似在于：不像其他目前存活的卵生爬行类，他们胎生生下后代。
Cuckoos would have good reason to do so, since the warblers and other small birds in whose nests they lay their eggs are understandably frightened of hawks, and give them a wide berth.
杜鹃有很好的理由去模仿鹰，由于莺和其它的小型鸟类在它们的巢中产卵，自然这些小型鸟类就很害怕鹰，并且对鹰敬而远之。
Humanely raised hens will be healthier as they will have room to move around in addition to being less susceptible to disease, and will therefore lay healthier eggs.
人道“饲养的鸡染病的几率会减小，而有活动空间的鸡会更健康，则会产下更健康的鸡蛋。”
Even then, they only lay eggs about every five years.
即便性成熟了，它们也是每隔五年才产卵一次。
After a few years building up strength, they swim back to the beaches were they were born to lay up to 150 eggs at a time in holes dug in the sand.
几年过去了，它们的力气增强了，他们便游回了他们的出生地，在那里繁衍下一代，他们一次可以产下150个蛋，然后挖个洞把这些蛋埋在沙子里。
And that puts them somewhere between mammals and reptiles, because they still maintain quite a lot of reptilian characteristics that we've lost, for instance they still lay eggs.
鸭嘴兽介于哺乳类与爬行类之间，因为它仍然具备许多爬行动物的特征，如产卵，而这些特征在我们身上已经消失了。
They produce, store, and release eggs into the fallopian tubes in the process called ovulation (pronounced: av-yoo-lay-shun).
卵细胞在卵巢处产生和存储，在排卵过程中，卵巢将卵细胞释放到输卵管中。
They lay their eggs on the inside of the pitchers, and tadpoles grow up swimming in the tiny pools of rainwater that collect in the bottom of these plants.
它们把卵产在猪笼草内。蝌蚪在猪笼草内由雨水聚集而成的小水池中生活。
Seriously , though. I thought hens are one of the best animals . why ? Because they can lay eggs.
言归正传，我认为母鸡是最好的动物之一。为什么？因为它会下蛋。
After a breeding year - during which they can lay up to 1,000 eggs - they head back to the feeding grounds for another few years to build up their reserves before returning to the nesting beaches.
经历了一个繁殖期，他们有的可以产下1,000颗蛋，它们就游回了它们的觅食区，在那里生活了一些年，为回到筑巢的沙滩储备能量。
它们会下蛋。
Mammals don't lay eggs. They give birth to live babies.
哺乳动物繁衍后代时不是卵生，而是胎生。
They lay their eggs in the winter and early spring and they grow all through the summer, so the ideal would be to have crawfish just in time for football season.
他们在冬季和早春季节产卵，在整个夏季生长，所以，可以及时提供足球赛季的小龙虾。
Of course not, if lizards were mammals they would not lay eggs.
当然不是，如果蜥蜴是哺乳类动物牠们就不会下蛋。
Some fish are very fertile; they lay 1000's of eggs.
有些鱼是非常多产的，它们产下数以千计的卵。
This is the place where Malaysian Plover come to lay eggs, they stay in a couple.
这里是马来西亚鸻飞来产卵的地方。它们总是成双成对。
Lacewing larvae are cannibalistic, so females lay their eggs at the end of filaments the size of human hairs, keeping them out of reach of one another when they hatch.
由于草蜻蛉的幼虫同类相食，所以雌蛉将卵产在头发般粗细的丝的末端，这样幼虫孵化出来后就够不着对方，以免互相蚕食。
One way for fruit fly moms to protect against this gruesome fate is to lay their eggs in an alcohol soaked environment, such as fermenting fruit, when they see that parasitic wasps are around.
果蝇妈妈为防止幼虫遭受厄运的其中一种办法是，当看到寄生蜂的出现时，将卵产在酒精浸泡的环境之中，例如发酵的水果里。
One way for fruit fly moms to protect against this gruesome fate is to lay their eggs in an alcohol soaked environment, such as fermenting fruit, when they see that parasitic wasps are around.
果蝇妈妈为防止幼虫遭受厄运的其中一种办法是，当看到寄生蜂的出现时，将卵产在酒精浸泡的环境之中，例如发酵的水果里。
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