Life history of aggression: effects of age and sexual experience on male aggression towards males and females

Aggression is a prominent behaviour well studied in a large variety of animals, but it has not been well integrated within life history research. To address this shortcoming, we conducted a series of experiments simultaneously quantifying the effects of age and sexual experience on the use of aggression in male fruit flies. We studied three types of aggression relevant to male fruit flies' natural history: fighting in the context of resource …