The book "Biology" published by McDougal Littell is a standard high school and college biology textbook which serves as the anchor to the McDougal Littell biology program. As of 2014, the most current edition was released in 2008.
McDougal Littell's "Biology" comes in student and teacher editions, high school editions geared to meet specific state requirements and a Spanish edition. The book is filled with photos and illustrations and includes many lab exercises for students. The aim of the book is to help students learn to think scientifically. To that end, the book includes many critical thinking and problem solving activities.