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Many of the Burgess specimens have now been assigned to living phyla just where Walcott put them in the first place. 许多布尔吉斯标本现在已经归到活着的动物的门里就是沃尔科特最初放置它们的地方。 Hallucigenia and s
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This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To keep your car purring, you have to change the oil. Such maintenance produces eight billion gallons of used motor oil annually. Some waste oil does get re-refined to pro
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This is Scientific American's 60-Second Science. I am Steve Mirsky.Got a minute? Talk about your vicious cycles. A new study finds that belly fat could be making you hungrier. Which would lead to more belly fat. The research was performed at the Univ
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Algae seem harmless enough. These precursors to plants thrive throughout the world's waters. But these single-celled plants have global consequences. We can thank them for oxygen in the atmosphere, oil in the lithosphere as well as dead zones in the
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Indian Prime Minister Manmohan Singh is expected to tell President Barack Obama there is no difference between good and bad Taliban when they meet this week on the G20 sidelines. Indian Prime Minister Manmohan Singh (file) India's prime minister wil
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Kurt Vonnegut The Summer had died peacefully in its sleep, and Autumn, as soft-spoken executrix, was locking life up safely until Spring came to claim it. At one with this sad, sweet allegory outside the kitchen window of her small home was Ellen Bow
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