This pioneering text combines research-focused storytelling with the Socratic method to get readers to think like practicing scientists. Each page of the book is designed in the spirit of active learning, asking readers to apply critical thinking skills as they learn key concepts. Accounts of real researchers designing and analyzing real experiments, carefully punctuated by thoughtful questions and exercises, train introductory readers in the process of DOING biology.Biology and the Tree of Life, Evolution by Natural Selection, Evolutionary Processes Speciation, Phylogenies and the History of Life, Bacteria and Archaea, Protists, Green Plants, Fungi, An Introduction to Animals, Protostome Animals, Deuterostome Animals Viruses, An Introduction to Ecology, Behavior, Population Ecology, Community Ecology, Ecosystems, Biodiversity and Conservation. For all readers interested in biological science.