Experiments indicate that selection against aggression in mammals can have multiple
effects on their morphology, physiology, behaviour and psychology, and that these results …

Individuals occupying dominant and subordinate positions in social hierarchies exhibit
divergent behaviours, physiology and neural functioning. Dominant animals express higher …

Creating a healthy, social classroom environment. This book explains how the brain, as a
social organism, learns best throughout the lifespan, from our early schooling through late …

Sexual and asexual reproduction are found throughout the plant and animal kingdoms.
Asexual reproduction has its advantages, chief among which is that it does not require the …

Longevity is a major component of variation in fitness in long-lived iteroparous species [1–4].
Among female baboons, variation in breeding lifespan accounts for approximately 50% of …

Highlights► Elo-rating generates reliable dominance hierarchies and circumvents
drawbacks of established ranking methods.► It allows visualizing dominance relationships …

Social integration and support can have profound effects on human survival. The extent of
this phenomenon in non-human animals is largely unknown, but such knowledge is …

According to behavioural ecology theory, sociality evolves when the net benefits of close
association with conspecifics exceed the costs. The nature and relative magnitude of the …

There is much interest in the evolutionary forces that favored the evolution of large brains in
the primate order. The social brain hypothesis posits that selection has favored larger brains …

Glucocorticoids are hormones that mediate the energetic demands that accompany
environmental challenges. It is therefore not surprising that these metabolic hormones have …