THE ANIMAL KINGDOM CAN BE SPLIT based on how body temperature is controlled (thermoregulation): ‘cold-blooded’ ectotherms use external sources of heat, such as solar energy, whereas ‘warm-blooded’ endotherms generate internal heat via metabolism. But while this difference helps define features and behaviour, some species show that the distinction between the two groups isn’t so clear-cut.
Cold-blooded & warm-blooded
Mar 07, 2024
2 minutes
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