Having pets is costly and time-consuming, but why do so many people choose to have them? Animal care is not just a hobby, but part of the history of our relationship with them, which runs deep. In this book, John Bradshaw explores anthrozoology, the science that studies the human-animal bond. Through our connection with animals, from pet lovers to our prehistoric ancestors, he reveals how animals have shaped our evolution. He warns that if we lose animals, we risk losing an essential part of ourselves.