It's like clockwork!

Jonah is really developing. He enjoys his time on his belly. In fact, he now rolls onto his belly when he sleeps! He sits up really well (we worry less and less about him falling over):

He rolls from his belly to his back.
He rolls from his back to his belly. (He seems to prefer this lately)
He even kind of shuffles forward and backward a little, but we aren't sure how intentional this is, because he usually moves backwards trying to get to something in front of him.
He really has his rotation down, too. At least in one direction. If he has something to his left, he will do a full clockwise rotation to get there:



He gets up on his knees and sticks his butt in the air like he is getting ready to crawl sometimes. He doesn't crawl yet, but we aren't in any rush for that. He will get there when he gets there.