Isaac has very low muscle tone so he has never been able to crawl or walk, but that doesn't mean that he isn't going places! He's been rolling for awhile, but a few weeks ago when I put him on the floor he disappeared! He's found creative ways of getting around. When he wants something, he rolls until he gets it! It's really nice to see that he isn't bored when I put him on the floor anymore. Another thing that he loves to do is dance. I will have to post a video of him dancing to row row the boat, it's too cute! I hold him up and he gets those legs moving with a great big smile on his face!