A comparative study of song form and duetting in neotropical Thryothorus wrens
Presence of rivals reduces mating probability but does not affect ejaculate size in the freshwater crayfish Austropotamobius italicus
Models of winner and loser effects
Partnerships in the social system of a small macropod marsupial, the quokka (Setonix brachyurus)
Analysing the effects of group size and food competition on Japanese macaque social relationships
Mating strategy predicts the occurrence of the Bruce effect in the vlei rat Otomys irroratus