Previously, it was widely believed that each species has a specific social organization, but
we know now that many species show intraspecific variation in their social organization …

This paper introduces a Theme Issue presenting the latest developments in research on the
interplay between flexibility and constraint in social behaviour, using comparative datasets …

A challenge of group-living is to maintain cohesion while navigating through heterogeneous
landscapes. Larger groups benefit from information pooling, translating to greater 'collective …

Seminal fluid proteins (SFPs) are a group of reproductive proteins that are among the most
evolutionarily divergent known. As SFPs can impact male and female fitness, these proteins …

Studying the causes and reproductive consequences of social variation can provide insight
into the evolutionary basis of sociality. Individuals are expected to behave adaptively to …

Consistent individual differences in behaviour, or personality, likely influence patterns of
space use and resource use in wild animals. However, studies on personality-dependent …

Cognitive ecologist posits that the more efficiently an animal uses information from the biotic
and abiotic environment, the more adaptive are its cognitive abilities. Nevertheless, this …

An individual's home range determines its access to resources, significantly influencing its
fitness. Food availability and population density are considered to be among the primary …

Within-species variation in social structure has attracted interest recently because of the
potential to explore phenotypic plasticity and, specifically, how demographic and ecological …

Capybaras,(Hydrochoerus hydrochaeris) are large, herbivorous New World hystricomorphs,
common in the seasonally flooded savannas of tropical and subtropical South America. In …