Some dinosaurs may have been so endowed, and although they seem to have possessed the cardiovascular system necessary for endothermy, that capacity does not conclusively prove that they were endothermic. |
That complex scenario, involving endothermy and preadaptations, has no name as yet. |
However, the bone microstructure indicates rapid growth, as in sauropods and extant mammals, which suggests endothermy. |
Birds are also endothermic, so endothermy is not unique to mammals. |
It is clear that endothermy need not be evoked in order to explain apparently stable temperatures in medium-sized dinosaurs living at midlatitudes. |
The timing of endothermy in the development of altrical birds. |