Bizarre,"" ""weird,"" simply ""improbable""--there's no end to monsters (or to books about them): in a close-up blow-up, even the wasp can qualify; judged awkward, so can the giraffe. Among the twenty described here are also the octopus, the pitcher plant, the praying mantis, the tarsier, the road runner, the bat, all of which may be found in more auspicious, less adventitious surroundings. Okay on specifics; in the aggregate, more unnatural history.