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This is Scientific Americans 60-second Science. Im Karen Hopkin, This will just take a minute. Have you ever said, I know it like the back of my hand? Well, how well do you know the back of your hand, or the back of your knee, or behind your ears? Pr

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This is Scientific American's 60-Second Science,I am Steve Mirsky.Got a minute? Its accepted that a large meteor impact 65 million years ago was responsible for the mass extinction of the dinosaurs. Which opened up niches for birds and mammals. But l

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This is scientific American sixty seconds science, I'm Cynthia Graber, this will just take you a minute. Tea and coffee are drunk worldwide, far beyond their original ecological niches. Now it looks like another caffeinated beverage also gained popul

阿迪达斯将在中国走时尚路线

Adidas AG will aim at niches such as high fashion and children's wear as it seeks to overtake Nike Inc. in China and become the nation's top sports-apparel brand. 为超越耐克(Nike Inc.)成为中国最大的运动装品牌，阿迪达斯(Adidas AG

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Species Loss Compromises Earths Vital Systems Scientists have long thought that diverse ecosystems like forests, lakes and streams are especially good at removing pollutants that human activities put into the environment. A new study in the journal N

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Insect exoskeletons also work like body armor, 昆虫的外骨骼就像保护身体的盔甲一样 protecting insects against the outside world and helping them cope with habitats that other creatures can't. 抵御外部环境的伤害，帮助它们应

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If it is possible, imagine the effect upon the beholder: 不妨想想旁观者的内心震撼， this precipice of ice, with tremendous cracking, is falling toward us with a majestic and awful motion. 那悬崖峭壁的冰山上端，訇然巨响纷纷

经济学人83:蛇颈龙的家族生活

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经济学人58:史前爬行动物 蛇颈龙的家族生活

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By Paul Sisco Washington 07 March 2007 watch Ethanol Alternative Fuel President Bush speaks to reporters about how cellulosic ethanol can be produced from biomass such as spruce wood chips President Bush leaves this week for a five nation Latin Amer

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For most of that time of life on Earth, living organisms have been relatively simple -- single cells. 地球的大多数时间，生物体多是以简单的单细胞存在的。 But they had great diversity, and, inside, great complexity. 但是它们是

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The guards smiled at him from their niches as he wound his way down the turret stair, carrying the sword in his good hand. 他佩着宝剑走下高塔楼梯，站在壁龛里的守卫微笑着看他。 Sweet steel, one man said. 真是把好剑。其中