Were Dinosaurs Warm-Blooded endotherms?

Where Do We Go From Here?

The isotopes in their bones suggest that dinosaurs were warmblooded

"One of the fiercer debates among palentologists (scientists who study fossils) has focused on wether or not dinosaurs were “warm blooded.” Humans like you and I are said to be warm blooded because we maintain a relatively constant body temperature higher than the surrounding air. A lizard, by contrast, adopts the temperature of its surroundings and is said to be cold blooded.

There are other more formal terms that professional biologists use to talk about body temperature, like homeotherm, endotherm, and pokliotherm, but the basic sense of the issue is clear: warm blooded animals like mammals keep their body temperature constant, while cold blooded ones like reptiles don’t."


...I think it makes more sense that they were endothermic mammals, as opposed to cold-blooded reptiles. But this idea is going to have to gain more momentum before old ideas regarding Dinosaurs are let go. - Toby