Photosynthesis: Leaves

See how scientists solved the mystery of a relentless sound coming through the walls of people living near the Florida coast. Learn more about fish mating in this video.

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Watch this video about electricity from spinach on HowStuffWorks. MIT researchers have created a spinach-powered solar battery, harnessing the ability of plants to convert sunlight into electricity. Learn how to generate electricity from spinach in... More »

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It is possible to create a headless clone of a tadpole, suggesting that it would also be possible to clone organs without having to create a complete individual.

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Most people hate roaches, but these little bugs are the ultimate survivors. Learn what makes cockroaches tick by watching this video from the Discovery Channel.

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The Gila Monster is probably the biggest homemade rocket you've ever seen in your life. Check it out in this video. Brought to you by the Discovery Channel.

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U.S. researchers have grown a living and beating heart in a lab. Scientists from the University of Minnesota took hearts from dead rats and injected them with heart cells from newborn rats; the hearts then came to life. Video courtesy of Reuters.

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See the wide range of tools -- both high-tech and simple -- that are used to perform autopsies. Learn more about the daily grind of a medical examiner in this video from Discovery.

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These polar bears face an uncertain future on Wrangel Island. Can they survive global warming?

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