True, but at that point we&#x27;re comparing warm-blooded mammals to... well, we don&#x27;t really know, do we? But it&#x27;s very possible they could simply slow down their metabolism even more than mammalian megafauna.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Physiology_of_dinosaurs#Metabolism" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Physiology_of_dinosaurs#Metabo...</a><p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Gigantothermy" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Gigantothermy</a>