This work contains contributions from behaviour geneticists, evolutionary psychologists, and experts on intelligence, with a general emphasis on exploring the differences and the tensions between evolutionary psychological approaches and behaviour genetic approaches.

Introduction (M. Rutter). Intelligence: Success and Fitness (D. Lubinski). The g Factor: Psychometrics and Biology (A. Jensen). Psychometric Intelligence Differences and Brain Function (I. Deary). The g Factor in Non-Human Animals (B. Anderson). Natural Selection, Mental Modules and Intelligence (R. Nesse). g and the One Many Problem: Is One Enough? (N. Brody). General Intelligence and the Definition of Phenotypes (D. Detterman). Is there a g Factor for Fitness? (D. Houle). How can Psychological Adaptations be Heritable? (J. Bailey). Social Complexity and Social Intelligence (A. Whiten). IQ Gains, WISC Subtests and Fluid g: g Theory and the Relevance of Spearman's Hypothesis to Race ( J. Flynn). Mutation, Selection and the Heritability of Complex Traits (A. Pomiankowski). The Quantitative and Molecular Genetics of Human Intelligence (P. McGuffin). Sexual Selection for Indicators of Intelligence (G. Miller); Final General Discussion; Closing Remarks (M. Rutter); Index of Contributors; Subject Index;.

Evolutionary psychology ans behaviour genetics are two successful and important fields in the study of human behaviour, but practitioners in these two fields have different conceptions of the nature of human intelligence. Evolutionary psychologists dispute the existence of general intelligence and emphasize the differences between the species. They argue that natural and sexual selection would be expected to produce intelligences that are specialised for particular domains, as encountered by particular species. Behaviour geneticists consider general intelligence to be the most fundamental aspect of intelligence and concentrate on the differences between individuals of the same species.
This exciting book features papers and discussion contributions from leading behaviour geneticists, evolutionary psychologists and experts on intelligence that explore the differences and the tensions between these two approaches. The nature of g or general intelligence is discussed in detail, as is the issue of heritability of intelligence. The alternative approaches emphasizing domain-specific intelligences are also explored, alongside wide-ranging discussions on a broad range of issues such as the biological basis for intelligence, animal models and changes in IQ scores over time.