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。
To lay eggs, especially by means of an ovipositor.
产卵或产仔的个体。
In spring, it returns to the fresh water stream to lay eggs.
春天它回到淡水的小溪里产卵。
Each colony may have one or more queens whose job is to lay eggs.
每一个蚁群可能有一只以上的蚁后，这只蚁后的工作就是产卵。
It is very unusual for a mammal to lay eggs or to have poisonous spurs!
对哺乳动物来说，卵生和长有毒刺是很少见的。
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。
The increase of walrus quantity also gave penguin to lay eggs to bring a lot to harass in recent years .
近年来，海象数量的增加，也给企鹅的产卵带来不少骚扰。
No generals command ant warriors. No managers boss ant workers. The queen plays no role except to lay eggs.
没有蚂蚁将军会命令蚂蚁战士，没有蚂蚁经理会呵斥蚂蚁员工，蚁后除了产卵之外没有任何用处。
He collects butterflies and brings them into a lab to lay eggs. Then he puts new butterflies into the habitat.
他聚集了蝴蝶并且把它们带回实验室产卵，然后他就让这些新来的蝴蝶住进栖息地。
Scientists monitored the birds during the breeding season and noted when the female birds were preparing to lay eggs.
科学家在繁殖期观测这些鸭，并着重注意雌鸭何时准备生蛋。
I walked among them, said: "the whale is a mammal, because it is not to lay eggs, but directly to health small animals."
我走到他们中间，说：“鲸是哺乳动物，因为它不是产卵，而是直接生小动物。”
The invention relates to a method for inducing verasper moseri to lay eggs naturally, which belongs to the aquaculture field.
本发明属水产养殖领域，具体地说是一种诱导条斑星鲽自然产卵的方法。
This new forced egg laying technique encourages the females to lay eggs which we were then able to rear into viable populations.
这种新的诱导产卵技术可以让母蚊子产卵以使我们能够将之培育进而得到足够数量的蚊子。
ADA FOAH, Ghana - you don't have to wait in line to watch sea turtles pull themselves onto shore to lay eggs, but you still need patience.
艾达·福阿，加纳——您再也不必排队观看海龟爬到岸上产卵，但你仍然需要耐心。
One reason for it is that around Easter time the rural household had plenty of eggs handy. The hens began to lay eggs again in the spring.
其中一个原因也许是，随着春天的来临，鸡开始下蛋的。在复活节前后，农户手里有许多鸡蛋。
Only nowadays all the cocks are cackling and pretending to lay eggs, and all the hens are crowing and pretending to call the sun out of bed.
只是如今所有的公鸡都咯咯叫，假装会下蛋，所有母鸡都喔喔啼，假装叫太阳起床。
"We believe flies might have gone inside his ears to lay eggs, which hatched into larvae and caused the itching," said Somsak Nonthasri, the doctor who treated him.
“我们相信可能是苍蝇跑进他的耳朵里产卵，卵孵化成为幼虫，导致耳朵痒，”治疗这名男子的医生桑姆沙克？诺萨斯瑞说。
Salmon manage to swim upstream to lay their eggs.
三文鱼设法游到上游产卵。
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。
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。
Where 50-kilogram king salmon once fought their way up waterfalls to lay their eggs in gravel beds, there now are only concrete walls holding back still water and deep beds of muddy deposits.
50公斤重的大马哈鱼王曾经奋力爬上瀑布，把卵产在砾石床上，现在只有混凝土墙挡住静止的水和深深的泥床。
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。
What a waste for a frog to lay so many thousands of eggs for just a couple of juvenile offspring!
青蛙一次产出成千上万只卵，只为了少数几个子代成蛙，这是多么大的浪费！
Spotted salamanders lay their eggs in pools in spring. And the egg capsules actually look green, thanks to the algae that surrounds the resident embryos.
斑点蝾螈于春天在池塘中产卵，并且胶囊状的卵呈绿色，这是因为藻类包围了这些胚胎。
Female crocs lay their eggs in clutches of 20 to 60. After the eggs have incubated for about three months, the mother opens the nest and helps her young out of their shells.
鳄鱼妈妈一次可以产卵20- 60个，经过3个月的孵化，鳄鱼妈妈就会打开巢穴的掩埋物帮助小鳄鱼顺利破壳。
Female crocs lay their eggs in clutches of 20 to 60. After the eggs have incubated for about three months, the mother opens the nest and helps her young out of their shells.
鳄鱼妈妈一次可以产卵20- 60个，经过3个月的孵化，鳄鱼妈妈就会打开巢穴的掩埋物帮助小鳄鱼顺利破壳。
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