 in their tummy? Susie, that's not exactly appropriate. Where do bugs go in the wintertime? Is this worm a boy or a girl? How do birds fly? Why can't dogs talk? Why can't I fly? Why can't I fly? Why don't you have any hair on your head? Why do trees get so tall? Where does the water in the bathtub go? Why can't you keep your eyes open when you sneeze? It doesn't grow on trees. Where does it grow?