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Scientists have identified a unique genetic mutation in about 10 percent of people with type 2 diabetes(糖尿病) studied in the United States and Europe. The discovery could help some people learn if they are at risk of developing diabetes so they
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Kasey on Why Tell me Why. Someone asked why veins are blue and blood is red. So that's part of this question: why do we have different blood types? Blood types are inherited, just like you inherit your eye color, or your hair texture, so you get a ge
自然百科2009年
Do you like birds, Ben? 本，你喜欢鸟类吗？ Sure! I see them around my house. They like my trees. 当然！我在我家附近看到过。它们喜欢我的树。 I like birds, too. Birds are very interesting. And there are so many different t
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WASHINGTON, May 2 (Xinhua) -- Rice originated(起源) in China, a team of U.S. genome researchers has concluded in a study tracing back thousands of years of evolutionary（进化的） history through large-scale gene re-sequencing. Their findings,
英语新闻
UNITED NATIONS, April 15 (Xinhua) -- A new polio vaccine will be rolled out next week to replace the one which protects against all three strains of wild poliovirus. It marked the beginning of the largest and fastest globally coordinated rollout of a
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Ya?l: Hey Don, what's that? Don: It's a tomato I found! Don't you think it looks like Richard Nixon? I wonder why tomatoes and other fruits sometimes grow into such different shapes. Y: Scientists wonder about that too, and they are a step closer to
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