The physical differences between the earliest known fossils and those from the dinosaurs that lived much later suggest that animals had already been evolving for some time. Paleontologists believe ...

Were dinosaurs warm-blooded like birds and mammals or cold-blooded like reptiles? It’s one of paleontology’s oldest questions, and gleaning the answer matters because it illuminates how the ...

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 ...

The remains of the earliest dinosaurs may lie undiscovered in the Amazon and other equatorial regions of South America and Africa, suggests a new study led by UCL (University College London) ...

Defined by their disappearance dinosaurs might appear to be evolutionary failures. Not so. Dinosaurs survived and thrived for 165 million years -- far longer than the roughly 300,000 years modern ...

A study investigated the enigma of why sauropod fossils are only found at lower latitudes, while fossils of other main dinosaur types seem ubiquitously present, with many located in the polar regions.

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Despite decades of digging and discovery, paleontologists still have ...

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