Reproductive inequality, or reproductive skew, drives natural selection, but has been difficult
to assess, particularly for males in species with promiscuous mating and slow life histories …

Callitrichid primates are recognized for high levels of sociality in small groups, their great
behavioral flexibility, and single-female dominant hierarchies. Previous work has highlighted …

Although kin selection is assumed to underlie the evolution of sociality, many vertebrates—
including nearly half of all cooperatively breeding birds—form groups that also include …

Highlights•A game-theoretical model helps understand the continuum of group membership
control.•Our model predicts that closely related insiders invest more in repelling efforts.•The …

Lions are the only social cat. They hunt together, raise cubs together, and defend territories
together against neighbors and strangers. Lions also rest atop their ecological pyramid, with …

Reproductive skew refers to the unequal partitioning of reproduction by same-sex members
of a social group. The concession, restraint and tug-of-war skew models attempt to predict …

Ecological differences are instrumental to the evolution of cooperative breeding, because
they mean that the costs and benefits of forming a group and sharing reproduction differ …

Еще в середине позапрошлого десятилетия ученые, изучавшие функционирование
сообществ насекомых, выделили 4 основных паттерна организационной структуры …

Nests are widespread in the animal world and aim to protect the young from predation and
adverse environmental conditions while being a privileged place to assess sexual selection …

Еще в середине позапрошлого десятилетия ученые, изучавшие функционирование
сообществ насекомых, выделили 4 основных паттерна организационной структуры …