Do we even know that for certain? Birds, which are directly decended from dinosaurs, are warm-blooded, and the large size of many dinosaurs calls into question whether their metabolism worked the same as a modern reptile’s - even crodociles are tiny compared to sauropods, t-rex, etc.
Do we even know that for certain? Birds, which are directly decended from dinosaurs, are warm-blooded, and the large size of many dinosaurs calls into question whether their metabolism worked the same as a modern reptile’s - even crodociles are tiny compared to sauropods, t-rex, etc.
Read this the other day. Apparently T-rex at least was warm blooded.
https://www.smithsonianmag.com/smart-news/tyrannosaurus-rex-was-a-warm-blooded-dinosaur-with-a-body-temperature-similar-to-that-of-humans-study-suggests-180989519/