Advertisement signals can convey information about a sender’s characteristics, such as body size. The reliability of signals, however, can be reduced when signal production is partially dependent on t
A long-standing goal for biologists has been to understand how female preferences operate in systems where males have evolved numerous sexually-selected traits. Jumping spiders of the Maratus genus
Parental investment in unrelated offspring seems maladaptive from an evolutionary perspective, due to the costs of energy and resources that cannot be invested in related offspring at the same time. T
Extended phenotypes with signalling function are mostly restricted to animal taxa that use construction behaviour during courtship displays. However, they can be used also as post-mating signals of ma
Competition between offspring can greatly influence offspring fitness and parental investment decisions, especially in communal breeders where unrelated competitors have less incentive to concede reso
