Ok, so my 8 month old hen went broody, so we decided to let her sit. We live in Ohio and it is cold now, so we moved her and her nest of 7 eggs to our heated, insulated, mud porch. We have a very small coop on the porch, completely contained so she could rest easy through her 21-day long sit. Long story short, Christmas Eve we came home to 2 baby chicks. No other eggs have hatched since. We have looked high and low and there is only 1 cracked egg, not 2. Is it really possible to have 2 chicks hatch from the same small egg? The cracked egg was from our green egg layer, which is a little on the small-medium size. These 2 chicks look identical. They have the same dad, however, all of our hens are various kinds. If they did not hatch from the same egg, would the mother hen eat/destory the shell? I'm looking for answers because I only have one cracked egg and 2 chicks.....thoughts/comments please??