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 …

Climate change and urbanisation of watercourses affect water temperatures and current flow
velocities in river systems on a global scale. This represents a particularly critical issue for …

Facial attractiveness has been suggested to provide signals of biological quality, particularly
health, in humans. The attractive traits that have been implicated as signals of biological …

Reproductive males face a trade-off between expenditure on precopulatory male–male
competition—increasing the number of females that they secure as mates—and sperm …

There are two reasons why researchers are interested in the phenotypic relationship
between the expression of male secondary sexual characters (SSCs) and 'ejaculate …

Female reproductive fluids (FRFs) serve key reproductive functions in sexually reproducing
animals, including modifying the way sperm swim and detect eggs, and influencing sperm …

Nearly 40% of commercial fisheries have now collapsed or are in serious decline. In
response, governments have invested millions of dollars into artificial breeding programs …

Mate choice in most organisms is not random, but determined by a suite of interacting traits
and environmental factors. While the selective pressures underlying differences in mate …

In species where males express carotenoid-based sexual signals, more intensely coloured
males may be signalling their enhanced ability to combat oxidative stress. This may include …

Acoustic signals used by males to attract females are among the most prominent examples
of secondary sexual traits, yet we have only limited understanding of their genetic …