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Study: Life on Earth Could Have Begun on Dry Land

New research reveals puddles that dry in the sun and re-form with the next rain mimic the environment in which life on our planet could have formed. Scientists at the Georgia Institute of Technology say that on the early Earth amino and hydroxy acids combined and were then subjected to cycles of wet and dry conditions. Over time, that chemical reaction formed polypeptides - the building blocks of life. The work supports the theory that life could have begun on dry land, where cool...

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