Life as we know it originated roughly 3.5 to 4 billion years ago in the form of a prebiotic ("before life") soup of organic molecules that somehow began to replicate themselves and pass along a genetic formula. Or so goes the thinking behind the RNA World, one of the most robust hypotheses of the origin of life. Researchers find that the amino acid arginine may have played a more important role in the chemical origins of life...

[[ This is a content summary only. Visit my website for full links, other content, and more! ]]