Birds and mammals are endotherms. They maintain body temperature by producing heat through metabolism. Endothermy is energetically expensive for an organism, yet endotherms have become the dominant group of tetrapods. What is a major evolutionary advantage of endothermy?
Endothermy allows greater Independence from water.
Endothermy decreases the amount of time an animal spends hunting or foraging.
Endothermy widened the range of habitats available and increased speciation.
Endothermy allows more body resources to be used for growth and reproduction.
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