The age of individuals has consequences not only for their fitness and behaviour but also for
the functioning of the groups they form. Because social behaviour often changes with age …

Social adversity can increase the age-associated risk of disease and death, yet the
biological mechanisms that link social adversities to aging remain poorly understood. Long …

Accumulating evidence in humans and other mammals suggests older individuals tend to
have smaller social networks. Uncovering the cause of these declines can inform how …

Mating with close kin can have considerable negative fitness consequences, which are
expected to result in selective pressure for inbreeding avoidance mechanisms, such as …

As efforts to conserve energy and reduce emissions in the global shipping industry intensify,
people are constantly looking for new types of energy to replace traditional fuels. Ammonia …

In wild animals, injuries often arise from intraspecific contests and, therefore, may reveal
challenges and selection pressures related to social conflict. We evaluated whether known …

Ageing affects many phenotypic traits, but its consequences for social behaviour have only
recently become apparent. Social networks emerge from associations between individuals …

Exposure to early life adversity is linked to detrimental fitness outcomes across taxa. Owing
to the challenges of collecting longitudinal data, direct evidence for long-term fitness effects …

Site fidelity—the tendency to reuse familiar spaces—is expected to improve fitness.
Familiarity with the local environment is particularly crucial when resource demands or …

Increasing age is associated with dysregulated immune function and increased
inflammation—patterns that are also observed in individuals exposed to chronic social …