Dr. Marvin Mackie began his lifelong work with animals from an early age. Raised on a farm around cows and horses, he entered veterinary school with the intent of becoming a large animal veterinarian. After seeing the dire need for more spay-neuter services while working at a 24-hour emergency clinic in Chicago, however, he eventually transitioned into pediatric small-animal medicine. With over 30 years of veterinary experience and having performed approximately 250,000 spay-neuter surgeries, Dr. Mackie provides a first-hand perspective on the evolution of spay-neuter practices in the United States from the 70s to today, describing his own Quick Spay Technique and how he has implemented it in recent years by teaching it to eager veterinarians in Mexico. He highlights the benefits of neutering from an early age and expounds upon his hopes that help from private practice will reinforce shelter work in sterilization for community cats.