Aiming to present the human animal in all its diversity, this work tells us who, why and how we are. It touches on themes such as sexuality, aggression, love, parenting, religion, ageing, and mental illness. It also ponders such topics as our need to seek out beauty; why our preferences in food become fixed; and more.

A groundbreaking synthesis of the entire science of human behaviour by 'one of the best scientist-writers of our time' (Oliver Sacks)