Sexual selection is a key component of evolutionary biology. However, from the very
formulation of sexual selection by Darwin, the nature and extent of sexual selection have …

As defined by Charles Darwin, sexual selection is “the advantage which certain individuals
have over other individuals of the same sex and species solely in respect of reproduction.” It …

Charles Darwin laid the foundation for all modern work on sexual selection in his seminal
book The Descent of Man, and Selection in Relation to Sex. In this work, Darwin fleshed out …

For some biologists sexual selection is in trouble. For the first time since the reinvigoration of
sexual selection in the 1970s following the effective rediscovery of mate choice (Bateson …

Sexual selection is a field coloured by tension and contrasting views. One contested claim is
the causal link from the definition of the sexes (anisogamy) to divergent selection on the …

What explains variation in the strength of sexual selection across species, populations or
differences between the sexes? Here, we show that unifying two well‐known lines of …

Darwin's recognition that male–male competition and female choice could favor the
evolution of exaggerated male traits detrimental to survival set the stage for more than a …

When Darwin first proposed the possibility of sexual selection, he identified two
mechanisms, male competition for mates and female choice of mates. Extending this …

Darwin identified explicitly two types of sexual selection, male contests (combat and
displays) and female choice, and he devoted the overwhelming majority of his examples to …

Sexual selection has the potential to decrease mean fitness in a population through an array
of costs to nonsexual fitness. These costs may be offset when sexual selection favors …