Author Description

"With the new 2025 Release, Raven and Johnson's Biology continues the momentum built over the last five editions. We continue to pro-vide an unmatched comprehensive text fully integrated with a con-tinuously evolving, state-of-the-art digital environment. We remain committed to our roots as the majors biology text that best inte-grates evolution throughout the text. There is an emphasis on the relevance of evolution throughout the ecology section, not only in all four ecology chapters, but also in the chapters on behavioral and conservation biology. In the animal form and function section, we emphasize evolution in the context of physiology. We have also moved the examples and insights from the chapter devoted to the evolution of development, to place them into the appropriate con-texts throughout the book. This emphasizes the importance of evolution and develop ment by continually providing examples, rather than gathering them together in a single chapter. In the opening molecular chapters, we have added additional examples of the action of evolution at the molecular level"--