Could a humanoid creature have wings? Certainly. Earthbound dinosaurs became pteranodons and birds. Tree squirrels became flying squirrels, and rodents became bats. Insects may have discovered the art of flying on two different evolutionary occasions, and even some species of fish have taken to the air. Biologically speaking, a flying primate is by no means out of the question. Clearly, under the right circumstances almost any animal can evolve the ability, if it's small enough to support its own weight by the flight muscles alone.Read the whole column for discussion of other fairy traits, including shape shifting and teeny tiny brains.