Since Darwin's conception of sexual selection theory, scientists have struggled to identify the
evolutionary forces underlying the pervasive differences between male and female …

For sexual selection to act on a given sex, there must exist variation in the reproductive
success of that sex as a result of differential access to mates or fertilisations. The …

Male–female coevolution has taken different paths among closely related species, but our
understanding of the factors that govern its direction is limited. While it is clear that …

Animal vision is incomplete without the ability to change the gaze that involves coordinated
control of eyes, head, and body movements (McCluskey and Cullen 2007). Saccadic eye …

The operational sex ratio (OSR) has long been assumed to be a key ecological factor
determining the opportunity and direction of sexual selection. However, recent theoretical …

Insects display a staggering diversity of mating and social behaviours. Studying these
systems provides insights into a wide range of evolutionary and behavioural questions, such …

In 1948, Angus Bateman published a paper on fruit flies that tested Charles Darwin's ideas
of sexual selection. Based on this one fruit fly study, Bateman concluded that because males …

The year 2021 marks the 150th anniversary of the publication of Charles Darwin's
extraordinary book The Descent of Man and Selection in Relation to Sex. Here, we review …

Sexual selection operates through consecutive episodes of selection that ultimately
contribute to the observed variance in reproductive success between individuals …

Sexual selection is considered the major driver for the evolution of sex differences. However,
the eco-evolutionary dynamics of sexual selection and their role for a population's adaptive …