When Peter Benchley set out to write his novel of a beachfront town under attack from a killer shark, there was only one living species that really fit the bill. There’s something about a great white ...

Dinosaurs were once assumed to have been ectothermic, or cold-blooded, an idea that makes sense given that they were reptiles. While scientists had previously discovered evidence of dinosaur species ...

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 ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Most fish are cold-blooded, which means that they rely on the ...

Regional endothermy could help the smalltooth sand tiger shark generate power to hunt. By Laura Baisas Published Nov 8, 2023 4:00 PM EST Get the Popular Science daily newsletter💡 Breakthroughs, ...

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 ...

Summary: A global study of vertebrates reveals that body temperature is the key driver behind brain size evolution. Warm-blooded species like mammals and birds can maintain the energy demands of ...

This illustration provided by the University of Vigo and University College London, depicts a dromaeosaur incubating its eggs as snow falls. (Davide Bonadonna/University of Vigo/University College ...

The bee hummingbird, the world's smallest bird, measures just 5.5 centimetres in length for males, while females are slightly larger at around 6.1 centimetres. They weigh only 1.95 grams, making them ...

This is an archived article and the information in the article may be outdated.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 ...