Alex is a born and raised Calgarian. She graduated with her DVM from the University of Melbourne in Australia . During her initial veterinary training down under she completed several externships with Theriogenologists in Australia, New Zealand and Canada, which furthered her interest in the subject. After working in private practice in Alberta including at Springbank Pet Hospital she was accepted into the American Kennel Club Small Animal Theriogenology residency at Colorado State University in 2021. During her time in Colorado she completed a Master’s degree in clinical reproduction with her masters project focusing on canine endometrial organoids to provide an in vitro method to study reproductive pathology in the female canine. She also participated in Colorado States ongoing clinical trial for the treatment of persistent breeding induced endometritis in the canine using fetally-derived extracellular vesciles. This July (2024) she passed her board certifying exam for the American College of Theriogenology.

​Dr. Horner is passionate about safeguarding genetic diversity in purebred dogs and providing education on the importance of reproductive health. In her spare time, she is actively involved in the purebred dog world, participating in conformation and several dog sports with her Black Russian Terrier, Sealyham Terriers and a Skye Terrier.