Japanese macaques are exposed to various stressful situations in the wild, including rank fights and mating competitions. Researchers recently took a closer look at how genetics ultimately control the release of stress hormones in these animals.
Members of both animal and human social groups work together to hunt, forage and fight under the guidance of leader. A recent study took a closer look at the nature of leadership to better understand how human and non-human leaders promote cooperative actions.
Rhesus monkeys rely on their sense of smell more heavily than researchers previously thought, employing it to distinguish between members of their own social groups and those who don't belong.
While the social roles some insects inhabit are set in stone, dinosaur ants and red paper wasps are far more flexible – and able to adjust their behaviors for varying responsibilities.