Okay everyone... I have a question. Growing up when I was a kid it seemed that once or twice every few months we would get a double yolk when we were eating eggs, and we all thought it was pretty cool.... but now that I am an adult, I would say it has been years and years and years since I have seen a double yolk... so here are my questions 1. Do commercial egg layers have a way to screen out double yolks or make them less common? 2. Do twin chicks usually survive in the egg and are there successful hatches with double chicks in an egg? 3. are they more or less common then they use to be? Any info would be greatly appreciated!