Monsters’ can help us by giving a tangible form to our secret fears. It is less widely appreciated today that ‘wonders’ such as the unicorn legitimize our hopes. But all imaginary animals, to some degree all animals, are ultimately both monsters and wonders, which assist us by deflecting and absorbing our uncertainties . It is hard to tell ‘imaginary animals’ from symbolic, exemplary, heraldic, stylized, poetic, literary, or stereotypical ones. What is reality? Until we answer that question with confidence, a sharp differentiation between real animals and imaginary ones will remain elusive. There is some yeti in every ape, and a bit of Pegasus in every horse. Men and women are not only part angel and part demon, as the old cliché goes; they are also part centaur, part werewolf, part mandrake, and part sphinx.