Lydia decided to crawl and stand up on her own at the same time at 8 months. She'll be walking pretty soon. She has a very active big sister to keep up with. Lucci likes to get into Lydia's feeding chair, bouncy seat, exersaucer and take all her toys these days. They play together a little now, but I really have to keep a close eye on Lucci- she gets a little rough with the baby and it makes mommie pretty darn nervous. Fun times!