She was so successful at training dolphins that she began applying the same techniques to other creatures, including dogs — and humans. She was so successful at training dolphins that she began applying the same techniques to other creatures, including dogs — and humans. Pryor, Karen (1932-2025), Deaths (Obituaries), Positive Reinforcement, Animal Behavior, Marine Biology, Dolphins and Porpoises, Dogs, Sea Life Park, Psychology and Psychologists, Hawaii NYT > Science