Shine’s size made him a good candidate for the surgery. A full-sized horse can weigh between 800 and 2,000 pounds, a weight that makes it difficult to fit an artificial limb capable of carrying ...

After an attack that left Shine, a miniature horse, with a mangled leg and hoof, veterinarians at Colorado State University fixed him up to run on rubber. In March, the 30-inch-tall, 150-pound ...