The coiled channels deep within the ears of fossilized and modern animals reveals that mammals became warm-blooded 233 million years ago. By Kate Baggaley Published Jul 20, 2022 11:09 AM EDT Get ...

Warm-blooded animals, such as mammals and birds, were able to maintain their body temperature regardless of the surroundings. Cold-blooded animals, such as reptiles, amphibians, insects, arachnids ...

That’s typical of warm-blooded animals. Mosasaurs shared the long neck and paddle-like limbs of plesiosaurs but were known as “accelerators,” meaning they lay in wait and grabbed prey as the ...

The first warm-blooded animals appeared abruptly 233 million years ago, according to clues hidden deep inside their ears. Before now, scientists estimated that warm-bloodedness, ...

Heating up. The inner ears of warm-blooded mammal ancestors called mammaliamorphs (illustrated, left) that lived in the Late Triassic Period had smaller, more tightly curved inner ear canals ...

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 ...

It’s rare to find someone who hasn’t heard about Megalodon, a massive shark species that inhabited various regions of the world approximately 15-3.6 million years ago. Long-gone now ...

Dinosaurs were initially cold-blooded, but global warming 180 million years ago may have triggered the evolution of warm-blooded species, a new study found.

In fact, they may have been warm-blooded, new research suggests. Dinosaurs may not have been the slow, sunbathing reptiles researchers used to think. IE 11 is not supported.

Dinosaurs may not have been the slow, sunbathing reptiles researchers used to think. In fact, they may have been warm-blooded, new research suggests. The researchers studied the "growth lines" on ...

To find out, they looked for and analyzed data on 2,118 species of warm-blooded animals that had reasonably closely related mainland species. They did the same with data from 695 cold-blooded species.