Did Crocodiles Evolve Backwards From Warm-Blooded Ancestors?
Modern-day crocodiles and birds share a common archosaur ancestor that survived the Permian-Triassic extinction event roughly 250 million years ago, according to paleontologists. New research reveals that unlike long-held scientific assumptions that warm-bloodedness only evolved once toward avian lineages, ancient crocodile forebears also possessed a warm-blooded physiology until the Chicxulub asteroid impact roughly 66 million … Read more