What makes a face attractive and why do we have the preferences we do? Emergence of
preferences early in development and cross-cultural agreement on attractiveness challenge …

During courtship, signals are sent between the sexes, and received signals contain
information that forms the basis of decision making. Much is known about signal content, but …

Pheromones and other kinds of chemical communication underlie the behavior of all
animals. Building on the strengths of the first edition, widely recognized as the leading text in …

This textbook helped to define the field of Behavioural Ecology. In this fourth edition the text
has been completely revised, with new chapters and many new illustrations and full colour …

The Shape of Thought: How Mental Adaptations Evolve presents a road map for an
evolutionary psychology of the twenty-first century. It brings together theory from biology and …

Over the last decades, the field of sexual selection underwent a paradigm shift from sexual-
stereotype thinking of “eager” males and “coy” females towards a more nuanced perspective …

Males in many species invest substantially in structures that are used in combat with rivals
over access to females. These weapons can attain extreme proportions and have diversified …

Darwin developed the theory of sexual selection to account for the evolution of weaponry,
ornamentation and other secondary sexual characters that are commonly more developed …

In sexually reproducing animals, individuals of one sex may have to compete for access to
mating partners of the opposite sex. The operational sex ratio (OSR) is central in predicting …

In spite of recent interest in sexual selection in females, debate exists over whether traits that
influence female–female competition are sexually selected. This review uses female–female …