Picture A Picture B
Are these the same baby? Different babies? Our babies? Somebody else's babies? Can you tell who's who? For extra credit, how old is the baby in each picture? (Sorry they're a bit blurry... someday I'll get the hang of this scanning thing.)
If I had more time, I'd figure out how to use forms so you could find out automatically through a clever survey. But since I don't, you'll just have to e-mail me your guesses to see if you got it right. Just mail Marie with your answers.