This author's work delves into the realms of zoology and ecology, with a career rooted in teaching and research on animal physiology. His scholarship is marked by a profound interest in marine life, particularly the aquatic invertebrates of the Galapagos. Extensive expertise in the field is evident in his scholarly publications, including widely adopted zoology textbooks. Later in his career, he also contributed field guides, making his specialized knowledge accessible to a broader audience.
Biology of Animals is an introductory one-semester text for science majors and non-majors. This respected text has been a best-seller for more than 20 years as a result of it's accuracy, quality illustrations, clarity of writing, and current research and taxonomy.