• Summary
  • Contents
  • Subject index

Evolutionary psychology is an important and rapidly expanding area in the life, social, and behavioral sciences, and this Handbook represents the most comprehensive and up-to-date reference text in the field today. Chapters in this Handbook address foundational theories and methodological approaches, providing a rich overview of the most important theoretical and empirical work in the field. The SAGE Handbook of Evolutionary Psychology is an essential resource for researchers, graduate students, and advanced undergraduate students in all areas of psychology, and in related disciplines across the life, social, and behavioral sciences. Part 1: Foundations of Evolution; Part 2: Middle-Level Evolutionary Theories; and Part 3: Research Methods and Strategies.

Sex Differences and Sex Similarities
Sex differences and sex similarities
Alastair P. C. Davies
Introduction

From an individual's physical appearance, we can immediately determine that the individual is human. It is not something that we have to think about. Indeed, our ability to do so appears to be instinctive. Further, typically, an individual's physical appearance allows us to instantly ascertain whether the individual is a woman or a man. Again, doing so appears to be instinctive.

Our ability to determine from an individual's physical appearance that the person is human indicates that certain physical features are reliably similar across women and men. Similarly, our ability to determine from an individual's physical appearance whether the person is a woman or a man ...

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