Building Baby's Strength

If you have an infant, she's probably content to sit quietly and stare up at you from the comfort of her bouncy seat, occasionally wiggling or waving her arms and legs. Flash forward a few months, and you'll wonder how your adorable, immobile little baby turned into the blur of activity you chase after every day.

Though it seemed to happen effortlessly, your little one put a lot of thought and muscle into learning how to crawl to her toy box or send the coffee-table coasters flying. Needless to say, you've got your work cut out for you -- start babyproofing, and warn the pets. And try to enjoy the show. There's nothing more satisfying to a little one than being able to do what she wants to do or get where she wants to go using her own steam. Read on to see how your baby learns to put her body in motion.