英语翻译Do you know why different animals or pests(昆虫) have their special colours?Colours in them seem to be used mainly to protect themselves.Some birds like eating locusts(蝗虫),but birds cannot easily catch them.Why?It is because locusts

英语翻译Do you know why different animals or pests(昆虫) have their special colours?Colours in them seem to be used mainly to protect themselves.Some birds like eating locusts(蝗虫),but birds cannot easily catch them.Why?It is because locusts
英语翻译
Do you know why different animals or pests(昆虫) have their special colours?Colours in them seem to be used mainly to protect themselves.
Some birds like eating locusts(蝗虫),but birds cannot easily catch them.Why?It is because locusts change their colours together with the change of the colours of crops(庄稼).When crops are green,locusts look green.But as the harvest (收获)time comes,locusts change to the same brown colour as crops have.Some other pests with different colours from plants are easily found and eaten by others.So they have to hide themselves for lives and appear only at night.
If you study the animal life,you’ll find the main use of colouring is to protect themselves.Bears,lions and other animals move quietly through forests.They cannot be easily seen by hunters.This is because they have the colours much like the trees.
Have you ever found an even more strange act?A kind of fish in the sea can send out a kind of very black liquid(液体) when it faces danger.While the liquid spreads over(散开),its enemies(敌人) cannot find it.And it immediately swims away.So it has lived up to now though it is not strong at all.

英语翻译Do you know why different animals or pests(昆虫) have their special colours?Colours in them seem to be used mainly to protect themselves.Some birds like eating locusts(蝗虫),but birds cannot easily catch them.Why?It is because locusts
你知道为什么不同的动物或者昆虫有自己独特的颜色吗?他们的颜色似乎主要是为了保护自己.
一些鸟爱吃蝗虫,但是鸟不能轻易地抓到他们.为什么?那是因为蝗虫群伴随着庄稼颜色的改变而改变颜色.当庄稼是绿的,蝗虫群也是绿的.但是当丰收时节来临,蝗虫群又变成了和庄稼一样的棕色.一些其他的具有不同颜色的昆虫能够很容易的从植物上发现和被其他东西吃掉.所以他们必须为了生命隐藏自己,而只在晚上活动.
如果你学习过动物的生活,你会发现颜色的主要作用就是保护他们自己.熊,狮子和其他的动物安静的穿过森林.他们不能被猎人轻易发现.这是因为他们的颜色像树一样.
你曾经发现过一些更特殊的行为吗?一种海里的鱼在面对危险时,能够释放出黑色的液体.当液体散开,他们的敌人就找不到它了.他立即就游走了.所以他们存活到现在,即使他们一点也不强壮.

你知道为什么不同种类的动物或昆虫有他们自己特别的颜色吗？它们的颜色看上去主要是用来保护它们自己。 一些鸟类喜欢吃蝗虫，但鸟不能容易地捕获到它们。为什么？那是因为蝗虫随着庄稼的颜色而改变它们自己的颜色。当庄稼绿了，蝗虫也绿。但当收获的季节来到，蝗虫变成庄稼的棕色。有和植物不同的颜色的一些其他的害虫容易被发现或被其他吃掉。所以它们必须为自己的生命而藏起来而且晚上才出现。 如果你学习动物生活，你会发...

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你知道为什么不同种类的动物或昆虫有他们自己特别的颜色吗？它们的颜色看上去主要是用来保护它们自己。 一些鸟类喜欢吃蝗虫，但鸟不能容易地捕获到它们。为什么？那是因为蝗虫随着庄稼的颜色而改变它们自己的颜色。当庄稼绿了，蝗虫也绿。但当收获的季节来到，蝗虫变成庄稼的棕色。有和植物不同的颜色的一些其他的害虫容易被发现或被其他吃掉。所以它们必须为自己的生命而藏起来而且晚上才出现。 如果你学习动物生活，你会发现颜色的主要用处是保护它们自己。熊，狮子和其他动物静静地穿过丛林。它们很难被猎人发现。这是因为它们有跟树相似的颜色。 你曾经发现过一个更奇怪的行为吗？一种生活在海里的鱼能射出一种黑色的液体当它面对危险。当这种液体散播开，它的敌人将不能找到它。它也会马上离开。所以它现在有达到高标准虽然它完全不强。

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