小动物的小秘密：兔子爱吃胡萝卜 老鼠最爱吃奶酪？

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小动物的小秘密：兔子爱吃胡萝卜 老鼠最爱吃奶酪？

Cut an Earthworm in Half, You Get Two Worms把蚯蚓弄断，你就可以得到两条

Try this. Buy yourself a cow. Now sever the cow straight down the middle. How many cows do you now have? Did each half grow a new half cow? 你可以试试买一头牛，然后把这头牛拦腰截开。你会得到几头牛呢？被你截断的两部分会不会长出新的另外一半部分来呢？

If you think we're being silly by picking such a completely different animal, fine. Try it with a fly, or a cockroach. Because earthworms are as biologically complex as any insect. They, too, have heads and tails and entire systems for eating and metabolizing food. They have brains, and hearts, the whole bit.如果你觉得拿牛这样比蚯蚓构造复杂得多的动物来打比方很傻的话，你可以用苍蝇或者蟑螂试试。因为蚯蚓和其他昆虫一样有着一套完整的生物学构造。他们也有头有尾，也有一整套消化系统。它们也有脑部、心脏等整套器官。

So the idea that if you cut the head off, the ass end of the worm will just grow a new head is just as insane as thinking a cow or a dog can do it. 所以认为把蚯蚓切断，蚯蚓能自己再生出个头和尾的想法跟觉得牛和狗能做到这样的事情一样不切实际。