单词：caterpillar stage
单词：caterpillar stage 相关文章
Imagine if before you took each step, your guts lurched up into your throat. Well, caterpillars dont have to imaginethey take such drastic steps every day. Researchers were interested in how fluids move around inside a caterpillar. So they put one on
Scientific American(七)月
A caterpillar's guts move forward first, followed by its outer body, according to x-ray studies of the insects walking on a treadmill. Imagine if before you took each step, your guts lurched up into your throat. Well, caterpillars dont have to imagin
60秒科学
But what's even more amazing to me is that although we've changed so little in so many thousands of years, each of us changes so much in just one lifetime. We tend to think of growing up as just getti
生命物语
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Its good to be the Queen. You get fed and cared for and generally treated like royalty. But if youre a blue butterfly caterpillar, you can get the same b
Scientific American(二)月
The Caterpillar The Caterpillar looked at Alice and said nothing. Perhaps it doesn't speak', Alice thought. But at last it did speak. Who are you? it asked. It was a hard question. Alice answered, but not very quickly: I--I don't know. I knew who I w
趣味英语
NEW YORK, Oct. 24 (Xinhua) -- Wall Street held its strong gain to the last minute of trading on Monday, buoyed by strong earnings from Caterpillar and hopes on a concrete resolution to the European debt woes. The Dow Jones industrial average gained 1
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