Karen Pryor, Guru of Positive Reinforcement, Is Dead at 92
Karen Pryor once taught a hermit crab to ring a bell by pulling a string with its claw. She taught a cat to play the piano (ham was involved) and,…
Karen Pryor once taught a hermit crab to ring a bell by pulling a string with its claw. She taught a cat to play the piano (ham was involved) and,…