Book excerpt: Cats are the world's most popular domestic pet, as well as being wild animals. This comprehensive book on feline behaviour explores both the familiar domesticated animal and wild relatives such as the leopard, tiger and lynx to examine the Felidae family as a whole, allowing for fascinating comparisons between wild and domestic species and explanations of behaviour in pet cats with evolutionary origins. Fraser's work helps increase readers' understanding of cat behaviour - why they behave as they do, for what purpose and why. The focus is on identifying normal behaviour from the cat's perspect.