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Blue German Shepherds German Shepherds are renowned for their intelligence and training ability. They require a routine of exercise and mental stimulation to remain healthy and happy. Blue shepherds are unique German Shepherds that carry two doses of the dilution gene, making their black fur appear blue. This genetic variation is a natural occurance. Health Blue German Shepherds are healthy dogs, but they are prone to certain health issues, such as hip and elbow dysplasia. Responsible breeding and regular vet check