Caterpillars’ chirp could be scary

Larvae of great peacock moths might signal that they’ll put up a fight

Should the need arise to say “back the bleep off” in caterpillar, it’s “chirp, chirp.”

DEFENSIVE ARTS | A caterpillar of the great peacock moth can say “leave me alone” in plenty of ways. Little clumps of spikes dotted along its body ooze a foul-smelling liquid, and buzzy chirps may serve as a warning that the creature is vexed enough to ooze.