In the book's introduction, author Patricia Churchland makes the case that human conscience can be explained by examining the biological dynamics of social living.

A discovery of Neanderthal footprints reveals insights into the hominin’s social structure.

Male Asian elephants are forming long-term, all-male groups to forage in agricultural areas of India.

Two clinical trials that altered vasopressin signaling report improved social functions in people with autism spectrum disorder, but researchers caution against overinterpreting the results.

To their own detriment, aphid nymphs release body fluids that clot up a plant’s wound caused by insects predating on the gall where the colony lives.

Members of species with shells they must hold onto for survival have larger sexual tubes than those with less precious private property.

After release from rehab, bottlenose Billie started walking on water with her tail. Studying how the behavior spread could offer clues about how animals learn from each other.

Her work changed the discipline by bringing rigorous experimentation to field studies of monkeys and baboons.

In Chapter 15, author Jason Colby describes a scene of captive orca release and early research into the species' behavior and social organization