Homeothermic Animals (Gr. Homois - Unchanging, Terme - Warmth)

Homeothermic animals

Homeothermic animals (from the Greek homoios - constant and therme - heat) are animals that maintain a constant body temperature regardless of the ambient temperature.

Homeothermic animals include birds and mammals. They have special thermoregulation mechanisms that allow them to maintain optimal body temperature for life. For example, when overheated, the blood vessels of the skin dilate, which contributes to the release of excess heat. When cooled, the blood vessels constrict, reducing heat loss. Temperature is also regulated by the evaporation of moisture from the surface of the skin and respiratory tract.

The ability to thermoregulate allows homeothermic animals to actively function in a wide variety of climatic conditions. This gives them significant advantages over cold-blooded animals.