Landmarks
published online March 1, 2000
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If Everyone Got an Annual AIDS Test, Could We Beat Back the Epidemic?
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As Amazon Rainforest Destruction Continues, Brazil Pledges Drastic Action
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Habitable Planets May Be Rife With Building Blocks of Life
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Young Earth May Have Had Tectonic Plates, Not Hellish Magma Oceans
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A Clue to the Evolutionary Riddle of How the Turtle Got Its Shell
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Geysers From Saturn’s Moon May Indicate Liquid Lakes, and a Chance for Life
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Have We Found an “Achilles’ Heel of Life” That Causes Aging?
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Key to Strong Bones Is a Mood Chemical Made in the Gut
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1/3 of China’s Yellow River Not Even Fit for Industrial Use
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Cavemen Found Innocent: Cave Bears Died From Cold, Not Spears
