black widow, Latrodectus mactans
['monarch, monarch butterfly, milkweed butterfly, Danaus plexippus', 'tree frog, tree-frog', "plunger, plumber's helper", 'mousetrap', 'sloth bear, Melursus ursinus, Ursus ursinus', 'buckeye, horse chestnut, conker', 'brown bear, bruin, Ursus arctos']