Babies know they're kids

This probably comes as no surprise to most parents but it's news to me. I'm discovering that John Haley (our four-month old) knows he's a child. The other day when we were in the doctor's office, he kept looking over at a two year old, obviously aware that he had something in common with the other small person. Also, I've noticed that he likes children's music! I didn't think he really cared about music one way or the other but it turns out he really enjoys the one album of kids' standards that we have.