thunder snake, worm snake, Carphophis amoenus
['bustard', 'bighorn, bighorn sheep, cimarron, Rocky Mountain bighorn, Rocky Mountain sheep, Ovis canadensis', 'bobsled, bobsleigh, bob', 'mink', 'chiton, coat-of-mail shell, sea cradle, polyplacophore', 'platypus, duckbill, duckbilled platypus, duck-billed platypus, Ornithorhynchus anatinus', 'sea slug, nudibranch']