Is it an alligator or a crocodile?

"Two beady eyes peek out of the water. Is it a crocodile or an alligator? They may look similar, but these two reptiles have many differences, including where they live and the shape of their snout. Let's find out what fearsome creature is really lurking below the water and explore their differences. The engaging text and stunning photos are perfect for early learners"--Provided by publisher.