chickens' ovaries -- on the development of the egg's shell. It would seem that without OC-17 converting calcium carbonate into calcite crystals, one couldn't have an eggshell, meaning that the chicken and its special protein powers had to have developed first. How the world's going to react to having one of its favorite clichés wrestled away has yet to be determined.
Update: Seems like we didn't make it clear enough that these findings relate specifically to chicken eggs. We're well aware that