Dinosaurs may not have been cold-blooded like modern reptiles or warm-blooded like mammals and birds -- instead, they may have dominated the planet for 135 million years with blood that ran ...

The idea of being either warm-blooded or cold-blooded—a binary choice between one physiological profile and another—is a pretty flawed concept, limited to an organism’s body temperature ...

“The question of whether dinosaurs were warm- or cold-blooded is one of the oldest questions in paleontology, and now we think we have a consensus, that most dinosaurs were warm-blooded.” ...

Dinosaur metabolisms were diverse; some lineages were cold-blooded like their lizard cousins, while others were warm-blooded like their avian relatives alive today. Skip to main content.

A new study suggests that the first warm-blooded dinosaurs may have roamed Earth about 180 million years ago. ... Scientists once thought of dinosaurs as sluggish, cold-blooded creatures.

Whale sharks’ huge bodies mean they’ve never really been cold-blooded Studying these enormous animals requires close collaboration between scientists and aquariums. By Brittney G. Borowiec.

Cold-blooded animals, such as reptiles, amphibians, insects, arachnids and fish, were not. So while cold-blooded animals did not always have “cold” blood, ...

They also presumed that dinosaurs were like present-day, cold-blooded lizards, meaning that their body temperature depended on the surrounding environment. However, ...