An international team of researchers suggests the ability to generate body heat, like modern birds and mammals, may have first evolved 180 million years ago, challenging the perception of cold-blooded dinosaurs.
Feathers or proto-feathers found on many dinosaurs indicate their potential for endothermy, the ability to internally generate body heat, akin to birds and mammals.
Scientists compared 1,000 fossils with prehistoric climate models to show that Theropods and Ornithischians, groups including T.Rex relatives, likely moved to colder climates suggesting warmth generation.
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