Pawpedia · Bodies and behaviour
Cold-blooded
Animals whose body temperature changes with their surroundings: reptiles, amphibians and most fish.
What does cold-blooded mean?
Cold-blooded animals don't actually have cold blood — they warm up in the sun and cool down when it's chilly.
Because they don't spend energy making heat, they can live on much less food. A crocodile can go months without eating after a big meal.
Examples in the zoo
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Savanna · Reptile
Nile crocodile
Crocodylus niloticus
Least concern
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Ocean · Reptile
Green sea turtle
Chelonia mydas
Endangered
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Türkiye · Reptile
Loggerhead sea turtle
Caretta caretta
Vulnerable
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Rainforest · Amphibian
Red-eyed tree frog
Agalychnis callidryas
Least concern
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Ocean · Fish
Great white shark
Carcharodon carcharias
Vulnerable
Related entries
- Warm-bloodedAnimals that keep their own body temperature steady whether it's hot or cold: mammals and birds.
- ReptileCold-blooded animals with backbones and scaly skin; most lay eggs.
- AmphibianCold-blooded animals with backbones and thin, moist skin, that spend part of their lives in water and part on land.