Predation is generally thought to constrain sexual selection by female choice and limit the evolution of conspicuous sexual signals. Under high predation risk, females usually become less choosy, because they reduce their exposure to their predators by reducing the extent of their mate searching. However, predation need not weaken sexual selection if, under high predation risk, females exhibit ...

Sexual preference determines mate choice for reproduction and hence guarantees conservation of species in mammals. Despite this fundamental role in human behavior, current knowledge on its target-specific neurofunctional substrate is based on lesion studies and therefore limited. We used meta-analytic remodeling of neuroimaging data from 364 human subjects with diverse sexual interests during s...

Although male choosiness may be influenced by predation risk, variation in mate availability, and fecundity that may vary spatially and over time, there is little evidence for variation in male mate choice preferences. In mixed populations of bisexual sailfin mollies (Poecilia latipinna) and unisexual Amazon mollies (Poecilia formosa), males encounter 2 types of potential mates: conspecific sex...