title: Contributions of C. Lloyd Morgan to comparative psychology.
mesh_terms: D000818:Animals; D001522:Behavior, Animal; D005075:Biological Evolution; D004739:England; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007323:Instinct; D011587:Psychology, Comparative / Q000266:history*; D009626:Terminology as Topic