What is it about cold blooded animals such as reptiles and amphibians that makes it so that they can’t regulate their own temperature? Doesn’t their metabolism produce heat in the same way that warm blooded animals do?

Question

What is it about cold blooded animals such as reptiles and amphibians that makes it so that they can’t regulate their own temperature? Doesn’t their metabolism produce heat in the same way that warm blooded animals do?

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Answer 1

Conservation of energy, they don’t need energy to produce heat, so they don’t have to eat that regularly. So they don’t spend a lot of energy into searching for food, they can ambush even if they have to wait a long time.

There is a video on youtube that covers this in depth.