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Researchers find our inner reptile hearts

An elaborate system of leads spreads across our hearts. These leads – the heart's electrical system – control our pulse and coordinate contraction of the heart chambers. While the structure of the human heart has been ...

dateSep 14, 2012 in Other
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Study of giant viruses shakes up tree of life

A new study of giant viruses supports the idea that viruses are ancient living organisms and not inanimate molecular remnants run amok, as some scientists have argued. The study reshapes the universal family tree, adding ...

dateSep 13, 2012 in Evolution
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