Jim Fowler, Naturalist and a Face of TV’s ‘Wild Kingdom,’ Dies at 89 – The New York Times

Mr. Fowler and Marlin Perkins formed a long-running duo on the documentary series filmed in the wild and sponsored by Mutual of Omaha.

Walter Mischel, 88, Psychologist Famed for Marshmallow Test, Dies – The New York Times

Dr. Mischel’s experiments with preschoolers and sweets zeroed in on the importance of delayed gratification, and his insights changed the study of personality.