"Animal Intelligences is a consolidated record of Edward L. Thorndike's theoretical and empirical contributions to the comparative psychology of learning. Thorndike's approach is systematic and comprehensive experimentation using a variety of animals and tasks, all within a laboratory setting.".

"This study in the investigation of animal intelligence illustrates Thorndike's thinking on the evolution of the mind. It includes his formal statement of the influential law of effect, which has a significant impact on other behaviorists. Hull's law of primary reinforcement was closely related to the law of effect and Skinner acknowledged that the process of operant conditioning was probably that described in the law of effect.".

"The new introduction by Darryl Bruce is an in-depth study of Thorndike's legacy to comparative psychology as well as a thorough retrospective review of Animal Intelligence."--BOOK JACKET.