https://en.wikipedia.org/wiki/Homeothermy https://en.wikipedia.org/wiki/Homeothermy > Homeothermy is one of the 3 types of thermoregulation in warm-blooded ani

https://en.wikipedia.org/wiki/Homeothermy https://en.wikipedia.org/wiki/Homeothermy > Homeothermy is one of the 3 types of thermoregulation in warm-blooded animal species > Some homeotherms may maintain constant body temperatures through behavioral mechanisms alone, i.e., behavioral thermoregulation. Many reptiles use this strategy And specifically with regards to dinosaurs: https://en.wikipedia.org/wiki/Gigantothermy https://en.wikipedia.org/wiki/Gigantothermy