I don’t think it means anything except that he is a bright and imaginative little boy! In fact, I predict that, years from now, when you and your friends or family members are relating cute stories about your children when they were babies, you’ll want to tell that. I hope I’m right.
Animal shadows on the wall might be a little frightening; I would work with real shadows of real things. Make a happy game out of it with him. Go outside at different times of the day and look at both of your shadows. Many young children especially enjoy seeing their shadows late in the afternoon when they are so big. Walk around the shadow made by a tree and comment on it. He may be a little too young to enjoy the famous poem by Robert Louis Stevenson, “My Shadow,” but I would read it to him anyway (perhaps over and over for a while). You can find it, probably with lovely illustrations, in a children’s poetry collection in your library.
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