The pace of reproductive aging has been of considerable interest, especially in regard to the
long postreproductive period in modern women. Here we use data for both sexes from a 37‐…

Relatives have more similar gut microbiomes than nonrelatives, but the degree to which this
similarity results from shared genotypes versus shared environments has been controversial…

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 …

In social hierarchies, dominant individuals experience reproductive and health benefits, but
the costs of social dominance remain a topic of debate. Prevailing hypotheses predict that …

This article is part of a Special Issue “Puberty and Adolescence”. The onset of reproduction
is preceded by a host of organismal adjustments and transformations, involving …

… A stock solution of Ac-DEVD-CHO (BACHEM Biochimie) was prepared in distilled water
at 10 mmol/L. Ac-DEVD-CHO was used at a final concentration of 100 μmol/L and was …

Group size is an important trait of social animals, affecting how individuals allocate time and
use space, and influencing both an individual’s fitness and the collective, cooperative …

Male mate-guarding episodes (‘consortships’), are taxonomically widespread, yet costly to
individual males. Consequently, males should bias consortships toward females with whom …

Environmental stressors impact physiology and behavior in many species of animals. These
effects are partly mediated through changing concentrations of glucocorticoids, which also …

The neuropeptide oxytocin (OT) is associated with a plethora of social behaviors and is a
key topic at the intersection of psychology and biology. However, tools for measuring OT are …