Living in social groups could influence the evolution of senescence and longevity by
affecting key life‐history parameters such as extrinsic mortality and the cost of reproduction …

A large increase in glucocorticoid hormones can inhibit or completely shut down breeding in
wild animals. Because of its critical role in reducing glucocorticoids after exposure to …

Darwin famously described special difficulties in explaining social evolution in insects. More
than a century later, the evolution of sociality-defined broadly as cooperative group living …

Sociality—ie, life in social groups—has evolved many times in rodents, and there is
considerable variation in the nature of these groups. While many species-typical behaviors …

It is increasingly recognized that plants are highly sensitive organisms that perceive, assess,
learn, remember, resolve problems, make decisions and communicate with each other by …

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 …

A challenge for social-affective neuroscience programs is to identify simple and yet valid
animal models for studying the expression of basic social emotions and their role during …

Alternative reproductive tactics (ARTs) are defined as discrete differences in morphological,
physiological, and/or behavioral traits associated with reproduction that occur within the …

Intraspecific variation in sociality is thought to reflect a trade-off between current fitness
benefits and costs that emerge from individuals' decision to join or leave groups. Since those …

Group size may influence fitness benefits and costs that emerge from cooperative and
competitive interactions in social species. However, evidence from plural breeding …