Figure 6.

Summary of studies on the associations between measures of glucocorticoids (GCs) and alloparental behavior in wild and captive cooperative breeders. While most studies from captive studies found no correlation between alloparental behavior and GCs, the majority of the evidence from wild animals shows GCs are positively associated with alloparental behavior. Counts are comparisons where any measure of GCs and alloparental behavior were investigated and in some cases there was more than one comparison per study (see Table S4)