Dogs, cats and horses are human companions, and the part they play as they accompany us through life is growing in significance. Keeping this close relationship healthy is not just an obligation to our animal companions, but it also protects humans from the transmission of disease pathogens. Increasingly, animal lovers are coming to expect the same quality of health care for their four-legged friends that they can claim for themselves. The demands placed on animal health and medical care are rising. We respond to these demands with new innovativions guided by ?Science for a Better Life?.