Covers the influence of natural selection on behaviour an animal s struggle to survive and reproduce by exploiting and competing for resources, avoiding predators, selecting mates and caring for offspring, and how animal societies reflect both cooperation and conflict among individuals.

Provides an excellent introductory text for students on the principles and methods of statistical analysis in the life sciences, helping them choose and analyse statistical tests for their own problems and present their findings.

The new edition of this established textbook, now with full colour illustration, has been extensively revised and continues to provide a comprehensive, stimulating, readable and authoritative coverage of freshwater habitats, their communities and their functioning, the world over.