Miles after rolls onto his back. He was having some tummy time when he pushed his head up and landed on his shoulder. He started wiggling his legs around and then rolled completely over on to his back. We took some pictures and laughed about it, then put him back on his tummy. He rolled over again. And again and again and again. Five times in a row! According to the baby book, he wouldn't be expected to roll over until sometime in his fourth month. We expect he'll be an Olympian, with physical abilities like this.