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Warm-blooded is an informal term referring to animal species whose bodies maintain a temperature higher than that of their environment. In particular, homeothermic species (including birds and mammals ) maintain a stable body temperature by regulating metabolic processes.
Mar 5, 2024 · Learn the differences between ectothermic (cold-blooded) and endothermic (warm-blooded) animals, how they regulate their body temperature, and their evolutionary history and advantages. See examples of ectothermic and endothermic animals, including some exceptions and adaptations.
- Alpaca. Vicugna pacos. Mammal. Peru. Herbivore. Alpacas are originally from South America. They live in the grasslands of Peru, Chile, Colombia, and Argentina; they also reside at high altitudes up to 13500 ft.
- Anteater. Vermilingua. Mammal. Central and South America. Omnivore. Anteaters are found in Central and South America. They spend their time eating termites, ants, larvae, bees – really any insect they can find.
- Bats. Chiroptera. Mammal. Worldwide. Omnivore. Bats are also warm-blooded animals that live all over the world, but they tend to prefer warmer climates.
- Bears. Ursidae. Mammal. North America, South America, Europe, and Asia. Omnivore. Bears live in small dens that they make during the summer months.
May 16, 2024 · Warm-bloodedness is the ability to regulate body temperature independently of the environment. Learn how warm-blooded animals (mammals and birds) differ from cold-blooded ones (fish, amphibians, reptiles, and invertebrates) and what mechanisms they use to control their heat.
- The Editors of Encyclopaedia Britannica
Endotherms are animals that maintain a constant body temperature independent of the environment, such as birds and mammals. Learn more about endothermy, thermoregulation, metabolism, and the challenges of veterinary medicine for endotherms.
- The Editors of Encyclopaedia Britannica
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Jul 20, 2022 · A study based on inner-ear anatomy suggests that mammals evolved endothermy, or warm-bloodedness, around 233 million years ago, during the Triassic period. This finding challenges previous estimates and reveals the ancient origins of this critical feature of mammals.
Jul 20, 2022 · How did mammals evolve to regulate their own temperature and why is it hard to pinpoint the date? Listen to a podcast episode that explores the fossil evidence of ancient inner ears and the enzyme that pulls CO2 out of the air.
