| A | B |
| Blinking | an automatic response that helps to protect the eye. |
| Camouflage | a protective coloration that allows some animals to blend in with their environment. |
| Counter-shading | a protective coloration in which the animal's back is dark while its underside is light. |
| Defense | a method of resisting attack. |
| Ejection | when an animal emits a fluid or object to ward off a predator. |
| External stimuli | stimuli that come from outside the body. |
| Food gathering | the process of finding food by hunting or fishing or the gathering of seeds, berries, or roots; may be seasonal. |
| Grouping | a social behavior that occurs when certain animals travel together for defense (schools of fish, herds) to attack other animals (packs). |
| Internal stimuli | stimuli that come from inside the body. |
| Mimicry | when a weaker animal copies a stronger animals' characteristics to warn off predators. |
| Panting | when some endothermic animals breathe heavily which increases air flow causing an increase in evaporation from the animal’s mouth and lungs, cooling the animal. |
| Seasonal camouflage | a protective coloration that is light in the winter and darker in the summer. |
| Shedding | when some endothermic animals form thick coats of fur or feathers to insulate their bodies from cold weather, then get rid of the thick coat during the summer, providing a cooling effect. |
| Shivering | when some endothermic animals have involuntary muscle movements that cause an increase in heat production. |
| Storing food | the process by which some animals put away food for later consumption during the winter months. |
| Storing food | the process by which some animals put away food for later consumption during the winter months. |
| Storing food in the form of fat | the process by which some animals overeat and reduce their physical activity to conserve energy during times of cold weather or drought. |
| Sweating | the secretion and evaporation of liquid from the skin that helps some endothermic animals stay cool |
| Warning coloration | when an animal displays a bright color to warn predators that they are poisonous. |