The best-selling text emphasizes the relationships of humans to other living things. Human Biology remains user friendly; relevancy and pedagogy are among its strengths. Human Biology is suitable for use in one-semester biology courses that emphasize human physiology and the role that humans play in the biosphere.The application of biological principles to practical human concerns is now widely accepted as a suitable approach to the study of biology because it fulfills a great need. Human beings are frequently called upon to make decisions about their bodies and their environment. Wise decisions require adequate knowledge.In this edition, as in previous editions, each chapter presents the topic clearly, simply, and distinctly so that students will feel capable of achieving an adult level of understanding. Detailed, high-level scientific data and terminology are not included because Dr. Mader believes that true knowledge consists of working concepts rather than technical facility. Students and instructors alike will find the text stimulating and a pleasure to read and study, especially since the illustration program is outstanding and there are many spectacular four-color illustrations that integrate art with micrographs.