The notion that men are more variable than women has become embedded into scientific
thinking. For mental traits like personality, greater male variability has been partly attributed …

Understanding determinants of differential reproductive success is at the core of
evolutionary biology because of its connection to fitness. Early work has linked variation in …

Male alliances are an intriguing phenomenon in the context of reproduction since, in most
taxa, males compete over an indivisible resource, female fertilization. Adult male bottlenose …

Investigations into cooperative partner choice should consider both potential and realised
partners, allowing for the comparison of traits across all those available. Male bottlenose …

Behavioural differences among social groups can arise from differing ecological conditions,
genetic predispositions and/or social learning. In the past, social learning has typically been …

While the ontogeny of beluga (Delphinapterus leucas) socio-sexual behavior has been
documented in animals between 37-and 108-months-old, the first 36 months of life are yet to …

Research on sex biases in longevity in mammals often assumes that male investment in
competition results in a female survival advantage that is constant throughout life. We use 35 …

Although a catalog of beluga socio-sexual behavior has been established, to date, little is
known about the development of beluga (Delphinapterus leucas) socio-sexual behavior …

Immatures' social development may be fundamental to understand important biological
processes, such as social information transmission through groups, that can vary with age …

For over a century, the evolution of animal play has sparked scientific curiosity. The
prevalence of social play in juvenile mammals suggests that play is a beneficial behavior …