Dinosaurs: Cold-Blooded Or Warm-Blooded? - FossilEra.com
The dinosaurs’ living representatives, the birds, are all warm blooded, with a 4 chambered heart maintaining a constant internal body temperature, on average higher than mammalian internal temperatures. The immediate ancestors of dinosaurs, basal ornithodirans archosaurs, are less clear. Gauging the metabolic rates of fossil species is ...
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