Convergent evidence from many species reveals the evolutionary origins of human
friendship. In horses, elephants, hyenas, dolphins, monkeys, and chimpanzees, some …

A century ago, foundational work by Thorleif Schjelderup-Ebbe described a 'pecking order'in
chicken societies, where individuals could be ordered according to their ability to exert their …

The book aims to integrate our understanding of mammalian societies into a novel synthesis
that is relevant to behavioural ecologists, ecologists, and anthropologists. It adopts a …

The groundbreaking theory of how fire and food drove the evolution of modern humans Ever
since Darwin and The Descent of Man, the evolution and world-wide dispersal of humans …

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 …

For animals living in mixed-sex social groups, females who form strong social bonds with
other females live longer and have higher offspring survival [1–3]. These bonds are highly …

Aging, for virtually all life, is inescapable. However, within populations, biological aging rates
vary. Understanding sources of variation in this process is central to understanding the …

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 …

Simple Heuristics in a Social World invites readers to discover the simple heuristics that
people use to navigate the complexities and surprises of environments populated with …

This comprehensive introductory text integrates evolutionary, ecological, and demographic
perspectives with new results from field studies and contemporary noninvasive molecular …