The perfect balance of science and story. Brief chapters are written like science news articles, combining compelling science with intriguing stories. The Second Edition features NEW stories on exciting topics such as CRISPR and the human microbiome, and expanded coverage of the course's most important content areas. Biology Now is written by an author team made up of a science writer and two experienced teachers. Expanded pedagogy in the book and online encourages students to think critically and engage with biology in the world around them.