I'll leave it in there then. I don't see any veining at all, that's why I was thinking it was infertile. So far I haven't discarded any of the 16 eggs, I can't see into any of the brown ones enough to make out veining, but I do think I see an embryo in a couple of them. So frustrating when you can't tell!
It does. I have not done it yet, and I'm afraid to do it to a fertile one, but, it's interesting to see development so if I end up with a dead in shell chick, I will check it out and see if I can figure out what went wrong.