Is there really any difference between an alligator and a crocodile? Of course there is. But would you know the difference if it bit you?

In his book "What's the Difference?," author Marc Tyler Nobleman shares "how to tell things apart that are confusingly close." We've selected two dozen of our favorite comparisons from Marc's research. How many can you tell apart?

Click on "Kit" or "Caboodle" and test your knowledge.