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What will the Amazon rainforest look like in 100 years?Life's Little Mysteries The health of the Amazon rainforest is key to the global climate, but many dangers threaten to make it unrecognizable in the future.
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Why does it take our eyes so long to adjust to the dark?Life's Little Mysteries Here's why it's so hard to see when we enter a dark room.
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Do you really have to wash rice before you cook it?Life's Little Mysteries Rice is eaten by more than half of the world's population daily. Should everyone be washing it before it's cooked?
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Has all the water on Earth been peed before?Life's Little Mysteries Water, water, everywhere … has all of it been peed out at least once?
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What's the deepest cave in the world?Life's Little Mysteries There are two contenders for the world's deepest cave, and they're in the same mountain range.
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Why can't we figure out how strong gravity is?Life's Little Mysteries Despite dozens of experiments over the years, scientists still don't have a precise measurement for gravity's strength. Why is that?
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How many generations of humans have there been?Life's Little Mysteries Modern humans have been around 300,000 years. How many generations is that?
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What is jet lag, and how can you avoid it?Long-haul travelers often feel totally out of whack for several days after arriving at their destination. Jet lag is a natural phenomenon, but can it be prevented?
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How did animals survive the asteroid that killed the dinosaurs?Life's Little Mysteries It helped to have a number of features to aid survival following the end-Cretaceous mass extinction.
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