This book provides a multidisciplinary overview of the impact of human–animal interaction on well-being from childhood to later life. It presents a life course perspective to the study of human–animal interaction, addressing concepts of family and the role of pets therein, as well as the impact of companion animals on child development and successful aging. This book fills a gap in the existing literature by framing the study of human–animal interaction, including the role of animal-assisted interventions on well-being, in a broader social and behavioral context.