You want to know something funny? One day you think your youngest will just stay small and never really learn how to crawl like a real baby and then all the sudden he learns... and within a 24 hour period he is climbing on little boxes and the fire place hearth. And then another day goes by and he can pull himself you to a standing position at the couch. He is definitely getting into everything and just loves to play with his brothers. Pretty soon he will be the one becoming a karate master.