Analogy: Structurally and functionally similar traits (such as the streamlined shapes of fish and dolphins) that evolved independently as adaptations to the same environment. See also: convergent evolution.
Anthropocentrism: A worldview revolving around the human species.
Anthropodenial: The a priori denial of humanlike characteristics in other animals or animallike characteristics in humans.
Anthropomorphism: The (mis)attribution of humanlike characteristics and experiences to other species.
Behaviorism: The psychological approach introduced by B. F. Skinner and John Watson with emphasis on observable behavior and learning. In its more extreme form, behaviorism reduces behavior to learned associations and rejects internal cognitive processes.
Biologically prepared learning: Learning talents and predispositions that evolved to suit a species’s ecology and assist its survival. See also: Garcia Effect.
Bonding- and Identification-based Observational Learning (BIOL): Social learning primarily based on a desire to belong and conform to social models.
Clever Hans Effect: The influence of unintentional cues by the experimenter in inducing an apparent cognitive feat.
Cognition: The transformation of sensory input into knowledge about the environment, and the application of this knowledge.
Cognitive ethology: Donald Griffin’s label for the biological study of cognition.
Cognitive ripple rule: The rule that every cognitive capacity turns out to be older and more widespread than initially assumed owing to convergent evolution.
Comparative psychology: The subdiscipline of psychology that seeks to find general principles of animal and human behavior or, more narrowly, to use animals as models for human learning and psychology.
Conformist bias: The tendency of an individual to favor the solutions and preferences of the majority.
Conspecific approach: The technique of testing animals with models or partners of their own species in order to reduce human influence.
Convergent evolution: The independent evolution of similar traits or capacities in unrelated species in response to similar environmental pressures. See also: analogy.
Cooperative pulling paradigm: An experimental paradigm in which two or more individuals pull rewards toward themselves via an apparatus that they cannot successfully operate alone.
Critical anthropomorphism: The use of human intuitions about a species to generate objectively testable ideas.
Culture: The learning of habits and traditions from others, with the result that groups of the same species behave differently.
Delayed gratification: The ability to resist an immediate reward in order to receive a better one later on.
Displacement activity: An activity irrelevant to the current situation that appears suddenly due to a thwarted motivation or conflict between incompatible motivations, such as fight an flight.
Ecological niche: The role of a species within an ecosystem and the natural resources it relies on.
Episodic memory: The recollection of specific past experiences, such as their content, location, and timing.
Embodied cognition: A view of cognition that emphasizes the role of the body (beyond the brain) and its interaction with the environment.
Ethology: The biological approach to animal and human behavior, introduced by Konrad Lorenz and Niko Tinbergen, that emphasizes species-typical behavior as an adaptation to the natural environment.
Evolutionary cognition: The study of all cognition, human and animal, from an evolutionary perspective.
Function: The purpose of a trait as measured by the benefits it confers.
Garcia Effect: An aversion to a specific food develops after negative effects of ingestion, such as nausea and vomiting, even if these effects occurred after a long time interval. See also: biologically prepared learning.
Homology: A similarity in traits of two species that is explained by the presence of these traits in their common ancestor.
Hume’s Touchstone: David Hume’s plea to apply the same hypotheses to the mental operations of both humans and animals.
Inferential reasoning: The use of available information to construct a reality that is not directly observable.
Insight: The sudden combining (aha! experience) of past bits of information to mentally come up with a novel solution to a novel problem.
Intelligence: The ability to successfully apply information and cognition to solve problems.
Killjoy account: The deflation of a claim regarding higher mental processes by proposing a seemingly simpler explanation.
Know-thy-animal rule: The rule that anyone who questions a cognitive claim about a species should either be familiar with the species or make an effort to verify the counterclaim.
Magic well: The endless complexity of the specialized cognition of any organism.
Matching-to-sample paradigm: An experimental framework in which the subject, after perceiving a sample, must find a matching one from among two or more options.
Mental time travel: An individual’s awareness of its own past and future.
Metacognition: The monitoring of one’s own memory in order to know what one knows.
Mirror mark test: An experiment to determine whether an organism will notice a mark on its body that it can see only via its mirror image.
Morgan’s Canon: The advice not to assume higher cognitive capacities if lower ones may explain an observed phenomenon.
Object permanence: The realization that an object continues to exist even after it has disappeared from an individual’s perception.
Overimitation: The imitation of all the actions shown by a model even if not all serve to reach the goal.
Perspective taking: The ability to look at a situation from another’s standpoint.
Pygmalion Effect: The way a given species is tested often reflects cognitive prejudices. Specifically: comparative testing favors our own species.
Scala naturae: The natural scale of the ancient Greeks ranking all organisms from low to high, with humans closest to the angels.
Selective imitation: Imitation of only those actions that lead to the goal while ignoring other behavior.
Self-awareness: Consciousness of the self, which some interpret as requiring an organism to pass the mirror mark test, whereas others believe that self-awareness characterizes all life-forms.
Signature whistles: Dolphin calls modulated so that each individual has a distinct and recognizable “melody.”
Social brain hypothesis: The hypothesis that the relatively large brain size of primates is explained by the complexity of their societies and their need to process social information.
Targeted helping: Assistance given by one individual to another based on perspective taking, such as judgment of the other’s specific situation and needs.
Theory of mind: The ability to attribute mental states to others, such as knowledge, intentions, and beliefs.
Triadic awareness: Individual A’s knowledge not only of its own relations with individuals B and C, but also of the relation between B and C themselves.
True imitation: A subtype of imitation that reflects understanding of the other’s methods and goals.
Umwelt: An organism’s subjective perceptual world.