leatherback turtle, leatherback, leathery turtle, Dermochelys coriacea
['electric ray, crampfish, numbfish, torpedo', 'ballpoint, ballpoint pen, ballpen, Biro', 'black-footed ferret, ferret, Mustela nigripes', 'cockroach, roach', 'Indian cobra, Naja naja', 'pencil sharpener', 'can opener, tin opener']