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Jun 9, 2023 · What Are Cold-Blooded Animals? Animals are classified into two groups based on their energy source: cold-blooded and warm-blooded. The former, also known as ectothermic or poikilothermic animals, lack the ability to regulate their internal temperatures, causing it to fluctuate with their surroundings.
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Mar 5, 2024 · Definition. Ectothermic animals or cold-blooded animals rely on external sources of heat to regulate their body temperature. Their internal physiological sources of heat are relatively minimal or insignificant in controlling their body temperature.
An ectotherm (from the Greek ἐκτός (ektós) "outside" and θερμός (thermós) "heat"), more commonly referred to as a "cold-blooded animal", is an animal in which internal physiological sources of heat are of relatively small or of quite negligible importance in controlling body temperature.
May 16, 2024 · This state distinguishes fishes, amphibians, reptiles, and invertebrate animals from warm-blooded, or homoiothermic, animals (birds and mammals).
- The Editors of Encyclopaedia Britannica
Animals, such as reptiles, fishes, and amphibians, that cannot control their body temperature and therefore become sluggish in cold weather. ( Compare warm-blooded animals.)
1. Turtles and Tortoises. Scientific Family: Testudines. Turtles and tortoises are a large group of reptiles that go back hundreds of millions of years. This group includes over 350 species found on land, as well as in both fresh and salt water. They range in size and appearance, but they are all cold-blooded.
Dec 13, 2019 · An ectothermic animal, also commonly known as a "cold-blooded" animal, is one who cannot regulate its own body temperature, so its body temperature fluctuates according to its surroundings. The term ectotherm comes from the Greek ektos, meaning outside, and thermos, which means heat.
