Resisting the urge to Um Actually this dragon novel because it has the dragon eggs be like three or four feet wide but there is simply a limit to how large hard-shelled terrestrial eggs can be. No matter how large the animal is, the embryo needs oxygen, and oxygen needs surface area. The larger an object is, the lower its surface area relative to volume, and the less oxygen the embryo can receive. We think of large animals as having porportionately large young because mammalian pregnancy has the unique benefit of allowing for the size of the young to scale with the adult because their oxygen is provided directly through the placenta, and almost all the megafauna remaining on Earth are mammals. But this is not the case for species which lay eggs! For fuck's sake even the sauropods hatched out of eggs barely larger than basketballs! Your hatchling dragon would be impressively enormous if it were the size of a house cat. Stop trying to make me believe that this (ROUND!) dragon egg somehow supplied enough oxygen to develop an infant the size of a large dog or even bigger. If it were possible the dinosaurs woulda been doing it!!!!
