Fascinating and illuminating, witty and accessible, The Science of Love and Betrayal is essential reading for anyone who's ever wondered why we fall in love and what on earth is going on when we do.

Robin Dunbar is currently Professor of Evolutionary Anthropology at Oxford University and a Fellow of Magdalen College. His principal research interest is the evolution of sociality. He was elected a Fellow of the British Academy in 1998. His books include The Trouble with Science, 'an eloquent riposte to the anti-science lobby' (Sunday Times), and Grooming, Gossip and the Evolution of Language. The Human Story was described as 'fizzing with recent research and new theories' in the Sunday Times and 'punchy and provocative' by the New Scientist. How Many Friends Does One Person Need?: Dunbar's Number and Other Evolutionary Quirks was published in 2010.