Gator has progressed from a tripod sit to sitting without his arms as support, for brief periods. I happened to have my camera handy when I saw him doing it for the first time yesterday morning.
At 5.5 months old, he's getting more and more efficient with his version of crawling. He can do a traditional crawl for a few steps, then goes to his modified version that works so well for him.
No teeth yet, but they have got to be close. He chomps on anything he can get his hands on. Including his toes. I really need to get a photo of that, because it's pretty funny, and he'll probably stop as soon as a tooth pops through. He crawled over and chomped on my toe yesterday, and that did not feel good. The kid has some strong jaws!
Violet's jealous furies have increased now that he is touching more and more of her stuff. We're attempting to use this as an incentive to keep her toys picked up, with mixed results. We're also working on SHARING. It's fine when she doesn't want him to play with something he shouldn't have. Not fine when she lays claim to infant toys.