TheShepard256
Well-Known Member
Well... the thing about belly buttons is that they come from having an umbilical cord, right? If so, that would imply the egg-laying races have a similar prenatal development process to the live-birthing races, which makes sense given that they're naturally capable of breeding with each other to produce fertile offspring and are thus the same species. My head-canon (and this applies to TiTS as well) is that pregnancies for egg-laying races goes mostly the same as for live-birthing races, only near the end, the placental fluids become much more nutrient-dense (acting as the equivalent of a yolk), the placenta calcifies (to form an eggshell-like structure) and the umbilical cord switches from using the mother's bloodstream to using the now nutrient-dense placental fluids.