Tag Archives: Ectotherm

Dinosaurs “Tepid-Blooded”? The media’s concern with never to be proven marginal theories is…something else!)

Dinosaurs “Tepid-Blooded”?

Researchers have long debated whether dinosaurs were warm-blooded or cold-blooded creatures, but the answer, it turns out, may be neither. A new study suggests that dinosaurs fall into some in-between category, which the authors have termed “mesothermic.” They came to this conclusion after analyzing the growth rings on the bones of 381 species, of which 21 were dinosaurs, and correlating this data with metabolic rates, which are an indicator of endothermy or ectothermy. What they found was that dinosaurs, along with a handful of living species, have metabolic rates that do not fit neatly into either category but instead lie somewhere between the two. More… Discuss