Bluehead wrasses (Thalassoma bifasciatum) follow a socially controlled mechanism of sex
determination. A socially dominant initial-phase (IP) female is able to transform into a new …

Although socially controlled sex transformation in fishes is well established, the underlying
mechanisms are not well understood. Particularly enigmatic is behavioural transformation, in …

In this paper, we present the results of cellular and molecular studies on the neuroendocrine
correlates of male sexual polymorphism in a population of the blenniid fish Salaria pavo …

Almost all vertebrates engage in some sort of courtship as part of mate selection. This
chapter examines the neural and hormonal control of courtship in three different groups …

Previous work had demonstrated that male spawning behavior in goldfish (Carassius
auratus) was reduced by lesions in the sex steroid-binding area of the ventral …

While the bluehead wrasse has long been used as a test species in sex allocation theory,
there is no published evidence that sex change in this species is socially controlled. Here …

The weakly electric brown ghost knifefish (Apteronotus leptorhynchus) modulates its electric
organ discharge to produce intraspecific communication signals called “chirps”. Although …

Males of many animal species perform specialized courtship behaviours to gain copulations
with females. Identifying physiological and anatomical specializations underlying …

It has been proposed that pair status is a proximate cue influencing the mating tactics
adopted by male waterfowl. Specifically, it is thought that, compared to unpaired males …

Despite having detailed information on mechanisms mediating sex-typical behavior in many
species, we have little understanding of whether the same mechanisms regulate these …