Definition:
An ectothermic animal is one who cannot regulate its own body temperature, so its body temperature fluctuates according to its surroundings.
Ectothermic animals, or ectotherms, are commonly referred to as "cold-blooded." Examples of ectotherms are: reptiles, amphibians, and fish.
The opposite of an ectotherm is an endotherm.
Also Known As: Cold-blooded
Examples:
The sea turtle is ectothermic because its body temperature changes with the temperature of its surroundings.
