Nature - Season 1 - Eps 11: The Discovery of Animal Behavior: A Question of Learning
First there is a re-creation of Ivan Pavlov's experiments which led to the discovery of the "conditioned reflex." Then we see the investigation by Otto Pfungst of "Kluge Hans" (Clever Hans) a horse whose apparent knowledge of arithmetic was actually response to subtle signals from his trainer. We also see dramatizations of Thomdike's experiments with chicks, Watson's with terns, and B. F. Skinner's famed work at Harvard in the thirties.
About Nature

Title: Nature
First Air Date: 1982-10-10
Last Air Date: 2025-02-19
Status: Returning Series
Rating: 8.1/10 (from 34 votes)
Language: EN
Seasons: 44
Total Episodes: 675
Network: PBS
Genres: Documentary, Family
Production Companies: Thirteen, Coneflower Films Studios, Trebitsch Produktion International GmbH, Rubin Tarrant Productions
Synopsis
Consistently stunning documentaries transport viewers to far-flung locations ranging from the torrid African plains to the chilly splendours of icy Antarctica. The show's primary focus is on animals and ecosystems around the world. A comic book based on the show, meant to be used an as educational tool for kids, was briefly distributed to museums and schools at no cost in the mid-2000s.