Who is this grown-up girl?

Is this my baby?

She's so grown up!

She runs around and talks and feeds herself and is trying to dress herself too (well, undress herself mostly).

Wasn't it just the other day when she was learning to roll over? When we'd put her on her tummy and she'd cry because she couldn't move? Isn't this the baby who slept the first six months of her life away?

Someone replaced my baby with a big girl!