In fact, some female mosquitoes need to eat a blood meal before they lay their eggs.
实际上，有些雌性蚊子在她们下蛋(产卵)之前，要去吃一顿人血大餐。
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。
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。
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。
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。
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。
They dig out nests in the riverbed and lay their eggs.
它们在河床上挖巢产卵。
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。
These mosquitoes lay their eggs on moist soil in the marshes, but they won't lay them on standing water like many other species.
盐水沼泽地的蚊子把自己的腿埋在沼泽地潮湿的泥土中，而不是像其它蚊子那样把腿放在水面上。
They can travel long distances to lay their eggs so the snake may not seem to have many but there will soon be more.
他们可以长途跋涉奠定他们的鸡蛋，使蛇未必似乎有很多，但有很快将更多。
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。
They get dirty and develop a condition called flystrike, which occurs when flies lay eggs on their wool and these then hatch into maggots.
它们会变得脏兮兮的，而且还会得蝇蛆病——就是苍蝇会在它们的羊毛中产卵，然后这些卵会孵化出蛆。
'They get dirty and develop a condition called flystrike, which occurs when flies lay eggs on their wool and these then hatch into maggots. '
它们会变得脏兮兮的，而且还会得蝇蛆病——就是苍蝇会在它们的羊毛中产卵，然后这些卵会孵化出蛆。
Cardinals lay their eggs in darkness, thus darkening of the spawning tank is required. Eggs are laid in 8-14 day intervals with up to 150 even 350 eggs. They are ready to spawn at 6-7 months of age.
宝莲灯要在黑暗中产卵，所以要求一个遮光的产卵缸。产卵周期为8~14天， 每次能有150个，甚至能有每次350个之多。 6~7个月龄就准备产卵了。
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。
They must lay their eggs without touching the ice, but it is the males that face the greatest challenge - overwintering alone in the coldest place on earth.
他们必须产卵不接触冰，但它是最大的挑战-越冬独自在地球上最冷的地方的男性。
If all has gone well, female iguanas will lay their eggs continuously one after the other all at one time until they are done.
如果所有这些都顺利，雌性鬣蜥会一个接一个连续不断地一次性地产下所有卵。
If all has gone well, female iguanas will lay their eggs continuously one after the other all at one time until they are done.
如果所有这些都顺利，雌性鬣蜥会一个接一个连续不断地一次性地产下所有卵。
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