noun
A cold-blooded animal that regulates its body temperature based on external sources such as the environment
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Ectotherms are animals that rely on external sources of heat to regulate their body temperature.
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Did you know that most reptiles are ectotherms?
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Ectotherms are like the chill bros of the animal kingdom, just soaking up the sun for warmth.
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Being an ectotherm in a cold-blooded world can have its advantages.