I understand that being warm-blooded means we control our body temperature, but HOW does that happen?

Question

and what do cold-blooded creatures lack that does not allow them to self regulate temperature?

In: Biology

Answer 1

Warm blooded animals generate heat by burning calories.  Cold blooded animals also generate heat WHEN they burn calories, for example, when using their muscles to move, but warm blooded animals are essentially leaving their engines on idle just to generate heat at all times.

And it isn’t a pure advantage, many cold blooded animals go weeks between meals because they are so much more energy efficient.