A dolphin trainer is responsible for the care, training, and enrichment of dolphins in marine parks, aquariums, or research facilities. They use positive reinforcement techniques to teach behaviors for shows, research, and medical care. Trainers also monitor the dolphins' health, prepare their diets, and educate the public about marine conservation. The job requires patience, physical endurance, and strong swimming skills. Many trainers have degrees in marine biology, psychology, or animal behavior.