which is which?

I asked my mother how to tell the difference between a crocodile and an alligator. We found the answers from a library book.

This is a crocodile. It has a V-shaped snout which is narrower than an alligator's.

This is an alligator. Its snout is round like a U-shape. The upper jaw is wider than the lower jaw. That is why you can see the upper teeth when the mouth is closed.