What Makes an Animal Cold Blooded

Cold-blooded animals do not maintain a constant body temperature. They get their heat from the outside environment, so their body temperature fluctuates, based on external temperatures. … Most of the rest of the animal kingdom—except birds and mammals—are cold-blooded.

What makes an animal warm or cold blooded?

Cold BloodedWarm-BloodedReptiles, insects, fish, amphibians, etcBirds and mammals

What is the difference between warm-blooded and cold blooded animals?

Warm-blooded animals, such as mammals and birds, were able to maintain their body temperature regardless of the surroundings. Cold-blooded animals, such as reptiles, amphibians, insects, arachnids and fish, were not. … Ectotherms are animals that don’t have the ability to retain the heat generated by their metabolism.