What is the Difference Between Warm Blooded and Cold Blooded Animals?

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The main difference between warm-blooded and cold-blooded animals lies in their ability to regulate their body temperature. Here are the key differences between the two:

  • Warm-blooded animals can maintain a constant or nearly constant body temperature regardless of the ambient temperature. They generate their own body heat and do not rely on the environment to regulate their temperature. Examples of warm-blooded animals include mammals and birds.
  • Cold-blooded animals, on the other hand, cannot maintain a constant body temperature and rely on the environment to regulate their temperature. Their body temperature changes with the temperature of their surroundings. Examples of cold-blooded animals include fish, reptiles, amphibians, and insects.

Modern terminology for warm-blooded and cold-blooded animals is endothermic (warm-blooded) and ectothermic (cold-blooded). Some animals are considered heterotherms, as they display both warm-blooded and cold-blooded characteristics.

In summary, warm-blooded animals can maintain a constant body temperature, while cold-blooded animals cannot, and their body temperature changes with the environment.

Comparative Table: Warm Blooded vs Cold Blooded Animals

Here is a table comparing the differences between warm-blooded and cold-blooded animals:

Feature Cold-Blooded Animals Warm-Blooded Animals
Definition Cold-blooded animals are those that cannot regulate their body's temperature. Warm-blooded animals are those that can maintain a nearly constant body temperature.
Also known as Poikilothermic animals. Homeothermic animals.
Body temperature Their body temperature changes according to the environment. Their body temperature usually remains constant, ranging from 35-40°C.
Metabolic rates Metabolic rates depend entirely on environmental temperature. Environmental changes have no effect on metabolic rates.
Phase They undergo two phases to be protected from extreme climate conditions. They do not need to undergo phases to maintain their body temperature.
Survival They cannot withstand extreme temperature conditions. They can maintain a constant body temperature and can survive in various temperature ranges.
Examples Reptiles, fish, amphibians, and insects. Birds and mammals.

In summary, cold-blooded animals cannot regulate their body temperature and rely on the environment to heat or cool their bodies, while warm-blooded animals can maintain a constant body temperature through internal mechanisms.