| A | B | 
| behavior | all the actions an animal performs | 
| stimulus | a change  in an organism's surroundings that causes the organism to react | 
| response | an action or change in behavior that occurs as a result of a stimulus | 
| instinct | an inborn behavior pattern than an animal performs correctly the first time | 
| learning | the process that leads to change in behavior based on practice or experience | 
| conditioning | the process of learning to connect a stimulus with a good or bad event | 
| trial-and error-learning | the learning that occurs when an animal learns to perform a behavior more and more skillfully through repeated practice | 
| insight learning | the process of learning how to solve a problem or to do something new by applying what is already known | 
| artificial intelligence | the capacity of a computer to perform complex tasks such as learning from experience and solving problems | 
| imprinting | a process in which  newly hatched birds or newborn mammals learn to follow the first object they see | 
| aggression | a threatening behavior that one animal uses to gain control over another | 
| territory | an area that is occupied and defended by an animal or group of animals | 
| courtship behavior | the behavior that animals of the same species engage in to prepare for mating | 
| society | a group of closely related animals that work together for the benefit of the whole group | 
| circadian rhythm | behavior cycles that occur over a period of approximately one day | 
| hibernation | a state of greatly reduced body activity that occurs during the winter | 
| migration | the regular, periodic journey of an animal from one place to another and back again for the purpose of feeding or reproducing |