I opened one of mine just a while ago, out of curiosity, and it was just a red ring on the yolk, but veins were growing out of it and attaching to the embryo, like it was a part of the growing baby. Is that normal? The embryo was a quitter anyways, so I don't feel bad opening it, but what about the others? I have several other eggs with these "blood rings" that appear to be their correct size for the age that they are. Are they dead, then? Or is this something else entirely?