What did Edward Thorndike prove about animal problem solving in the late 1890s?
Edward Thorndike proved that animals do not use insight to solve problems but rather learn through a slow, mechanical process of trial and error. He demonstrated this by placing hungry cats in wooden puzzle boxes where they escaped by accidently stepping on a lever to open a door. This gradual improvement created an S-shaped learning curve that contradicted the belief that animals possessed a special faculty of insight.