Karen Pryor was a marine mammal trainer in the 1960s. She pioneered the use of behavioral science to develop the dolphin shows at Sea Life Park. Her work with dolphins, as head trainer and curator at Sea Life Park led to the first scientific paper on training creativity in animals. While at Sealife park, she did ground-breaking work on animal behavior and cognition, which eventually segued into what is now called clicker training, which is used by some trainers as a positive and humane way to work with animals.