The world’s largest mass extinction triggered a switch to warmblood – AlKhaleej Today

Attitude shift at the end of the Permian 252 million years ago. Before the crisis, most reptiles were sprawling; then they walked upright. This could have been the first sign of a new pace of life in the Triassic. Photo credit: Animal drawings by Jim Robins, University of Bristol.
Mammals and birds are warm blooded today, and this is often seen as the reason for their great success.
Bristol University paleontologist Professor Mike Benton identifies himself in the journal Gondwana research tha…

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