Among human foragers, males and females target different foods and share them. Some
view this division of labor as a cooperative enterprise to maximize household benefits; …

Sexual selection is thought to favor the evolution of secondary sexual traits in males that
contribute to mating success. In species where females mate with more than one male …

Males are predicted to compete for reproductive opportunities, with sexual selection driving
the evolution of large body size and weaponry through the advantage they confer for access …

It is unknown why females mate with multiple males when mating is frequently costly and a
single copulation often provides enough sperm to fertilize all a female's eggs. One possibility …

The evolution of sexual dimorphism involves an interaction between sex-specific selection
and a breakdown of genetic constraints that arise because the two sexes share a genome …

Background Interlocus conflict predicts (a) evolution of traits, beneficial to males but
detrimental to females and (b) evolution of aging and life-span under the influence of the …

Previous studies of Drosophila melanogaster have demonstrated a cost to females from
male courtship and mating, but two critically important parameters remain unresolved:(i) the …

Conflicts of interest between mates can promote the evolution of male traits that reduce
female fitness and that drive coevolution between the sexes. The rate of adaptation depends …

In naturally polygamous organisms such as Drosophila, sperm competitive ability is one of
the most important components of male fitness and is expected to evolve in response to …

The experimental evolution under different levels of sexual conflict have been used to
demonstrate antagonistic coevolution in muscids, but among other taxa a similar approach …