Ever Seen A Chicken Egg Inside Another Egg?

Texas farmer Gary noticed his seven-month-old chicken started laying very large eggs that contain something quite odd. 
A tiny, fully formed egg was found inside of a regular-sized egg of that seven month old chicken. This particularly rare, miniscule egg inside an egg was also caused by a counter-peristalsis contraction. However, in this case the oocyte that was released in the first egg was tiny because the ovary had released an oocyte out of order. Usually hens ovulate daily in order of size – laying the largest, most developed oocyte first. The hen’s ovary is simultaneously preparing smaller oocytes for release at a later time.