Comparative psychology

Comparative psychology studies behavior and mental processes across animal species, often using controlled experiments to investigate similarities, differences, and their origins.

Animal learning: Changes in animal behavior or knowledge resulting from experience. Learning experiments reveal which behavioral changes depend on experience across species.
Charles Darwin: The English naturalist who developed the theory of evolution by natural selection. Darwin argued that mental abilities, like bodily traits, could evolve across species.
Animal welfare: The well-being of animals as affected by their health, conditions, and treatment. Evidence about animals’ needs and capacities can guide humane housing and research practices.
Ethology: The biological study of animal behavior, especially in natural conditions. Ethology often emphasizes behavior in ecological settings, unlike laboratory-centered comparative experiments.
Classical conditioning: Learning in which a stimulus comes to predict another stimulus and elicit a response. Pavlovian procedures provide a controlled way to compare associative learning.
The Descent of Man: Charles Darwin’s 1871 book on human evolution, sexual selection, and continuities between humans and other animals. Its claims about shared mental capacities helped establish comparative study.
Environmental enrichment: Changes to captive environments that provide animals with opportunities for species-typical activity. Studies of motivation and cognition help assess which captive conditions support animal well-being.
Cognitive ethology: The study of animal cognition in relation to natural behavior and ecological context. It tests mental explanations through behavior observed in settings relevant to the species.
Operant conditioning: Learning in which consequences alter the likelihood of a behavior. Reinforcement schedules let researchers compare how species adjust actions to outcomes.
George Romanes: A British evolutionary biologist who wrote early works on animal intelligence. Romanes assembled animal anecdotes to argue for continuity between human and animal minds.

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