We review the current status of three well–established models (direct benefits, indirect
benefits and sensory drive) and one newcomer (antagonistic chase–away) of the evolution …

The handicap hypothesis of sexual selection predicts that sexual ornaments have evolved
heightened condition–dependent expression. The prediction has only recently been subject …

The genic capture hypothesis offers a resolution to the question of how genetic variation in
male sexually selected traits is maintained in the face of strong female preferences. The …

Only high-quality males can bear the costs of an extreme sexual display,,,. As a
consequence, such males are not only more attractive, but they often live longer than …

The regulation of fat and glucose metabolism in the liver is controlled primarily by insulin
and glucagon. Changes in the circulating concentrations of these hormones signal fed or …

The evolution of mate choice for genetic benefits has become the tale of two hypotheses:
Fisher's 'run–away'and 'good genes', or viability indicators. These hypotheses are often …

The Darwin–Bateman paradigm recognizes competition among males for access to multiple
mates as the main driver of sexual selection. Increasingly, however, females are also being …

The cognitive science of religion is a rapidly growing field whose practitioners apply insights
from advances in cognitive science in order to provide a better understanding of religious …

The acquisition of resources is an important determinant of patterns of variation in and
covariation among traits that are costly to produce and are dependent on condition for their …

Animals often need to signal to attract mates and behavioural signalling may impose
substantial energetic and fitness costs to signallers. Consequently, individuals often …