Author Information
Nicholas B. Davies FRS is a Professor of Behavioral Ecology in the Department of Zoology at the University of Cambridge and a Fellow of Pembroke College. John R. Krebs FRS is the Principal of Jesus College and a Professor in the Department of Zoology at the University of Oxford, as well as a member of the House of Lords. Stuart West is a Professor of Evolutionary Biology in the Department of Zoology at the University of Oxford.

Book Description
This textbook has shaped the field of behavioral ecology. In this fourth edition, the text has been completely revised, with new chapters and many new illustrations and color photographs. The focus remains on the influence of natural selection on behavior – the struggle of an animal to survive and reproduce by utilizing and competing for resources, avoiding predators, selecting mates, and caring for offspring.