Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Were dinosaurs warm ...

Scientists once thought of dinosaurs as sluggish, cold-blooded creatures. Then research suggested that some could control their body temperature, but when and how that shift came about remained a ...

Warm-bloodedness may have first arisen in dinosaurs some 180 million years ago. Dinosaurs were once thought to have been cold-blooded like their modern-day reptilian cousins. Recent findings suggest ...

WASHINGTON (Reuters) - The hot question of whether dinosaurs were warm-blooded like birds and mammals or cold blooded like reptiles, fish and amphibians finally has a good answer. Dinosaurs, for eons ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Dinosaur Mysteries digs into the secretive side of the “terrible ...

If dinosaurs were reptiles, then why aren't birds cold blooded? When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. 'Rare' ancestor reveals how huge ...

[url=http://arstechnica.com/civis/viewtopic.php?p=27288281#p27288281:23j0jb2l said: JPan[/url]":23j0jb2l]I have read that cold blooded animals actually have a much ...

This illustration provided by the University of Vigo and University College London, depicts a dromaeosaur incubating its eggs as snow falls. The raptor, along with other select dinosaurs, may have ...

Scientists once thought of dinosaurs as sluggish, cold-blooded creatures. Then research suggested that some could control their body temperature, but when and how that shift came about remained a ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. DALLAS (AP) — Scientists once thought of ...

DALLAS (AP) — Scientists once thought of dinosaurs as sluggish, cold-blooded creatures. Then research suggested that some could control their body temperature, but when and how that shift came about ...