Are you seeing double? Not at all--in fact, you're looking at a whole wild world of differences Animals from far and wide--bears, elephants, giraffes, reindeer, seals, walruses, zebra, and a menagerie more--have trekked into these pictures, seemingly in pairs. But, a note on the side of each spread tells you just how many changes there are from one to the other. Start easily, with the fish swimming all around the shark: Can you find just 10 small variations? Good--then try for 11. Compare the two groups of diving penguins for things that are new. Go all the way up to 21, high in the sky with the proud bald eagles. And, if you need some help, the answers are at the end, with all the differences circled