Group size is a fundamental component of sociality, and has important consequences for an
individual's fitness as well as the collective and cooperative behaviours of the group as a …

Glucocorticoids hormones (GC s) are intuitively important for mediation of age‐dependent
vertebrate life‐history transitions through their effects on ontogeny alongside underpinning …

The endocrine mechanisms causing variation and plasticity in life history traits (eg,
development time, mass at birth/hatching, rate of postnatal growth, age or size at sexual …

Background Various aspects of sociality can benefit individuals' health. The host social
environment and its relative contributions to the host-microbiome relationship have emerged …

It has been well-established that there is variation in the strength and direction of the
relationship between circulating glucocorticoids (GCs) and fitness. When studies …

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 …

Various types of long-term stable relationships that individuals uphold, including
cooperation and competition between group members, define social complexity in …

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

Simple Summary Allonursing and allosuckling are behaviors displayed by some females,
characterized by nursing and feeding non-filial offspring. Although both are costly behaviors …

Sociality and cooperative rearing may have evolved to increase direct fitness when
conditions are challenging to reproduction and/or to reduce environmentally induced …