Your insider guide to the stuff of life 3.8 billion years old and counting, there’s more than a little to know about the fundamentals of how life works. This friendly guide takes you from the primordial soup to the present, explaining how specialized cells have given rise to everything living, from the humblest amoeba to walking, talking human beings. Whether you’re enrolled in a cell or molecular biology course and need a straightforward overview, or are just curious about t