Overview Inspired by recommendations from the AAAS vision and Change Report. Principles of Biology is reflective of the shift taking place in the majors biology course from large and detail rich to short and conceptual, with a focus on new, cutting-edge science. A succinct and inviting text focused on central concepts, Principles of Biology helps students connect fundamental principles while challenging them to develop and hone critical thinking skills. Five new chapters introduce cutting-edge topics that will benefit students who continue their study of biology in future courses (Chapters 11, 16, 24, 41 and 47)