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Ultrasound helps astronomers determine age of stars by listening to their heartbeats
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No Bigfoot. No Yeti. Hair samples are from bears, wolves
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High altitude adaptability of Tibetans due to DNA from extinct human species
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Archaeopteryx had feathers before flight - but why?
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Fabien Cousteau sets new underwater stay record--31 days!
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Who says plants can't hear? They hear those hungry caterpillars coming, say scientists
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Bone house wasps craft their home with bodies of dead ants
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Tibetan 'super athlete' gene courtesy of an extinct human species
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Red Kangaroo tail is not just for wagging, but for helping kangaroos walk
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Saturn's moon Titan boasts ocean as salty as the Dead Sea
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Muscle power is the machine behind 'Bio-Bot' robots (VIDEO)
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Fabien Cousteau honors grandfather Jacques with test of underwater colony in Mission 31
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