Four and twenty tailors went to kill a snail . . . Run, tailors, run, or she’ll kill you all e’n now. —Old Nursery Rhyme The sluggish snail has turned out to be far more deadly than the anonymous poet ...

The awkward stage of adolescence drives some insects to murderous home invasion. When the time comes to shed their skin, certain beetle larvae in Greece scout out a sleeping snail, break into its ...