my almost 5 yr old thinks she has seen the world already and tries to out fox me every day,my 8 month old went from laying around and staring at u like u had 2 heads to a full crawling cruising in and out of rooms,grabbing everything at sight,and flips out if u leave the room and she can't see u.it was like 7 months nothing 2 wks she learned every thing to do,the first girl was fast learner but not this one.