Harmless Caterpillar Mimics Menacing Snake Head to Fool Predators

Meet the Dynastor darius darius, a harmless caterpillar with astounding survival skills. In order to avoid being attacked by predators during its pupal stage (when the larvae transform into butterflies or moths), the helpless creature takes on the form of a rather menacing snake!

Native to Trinidad, the shape-shifting D. darius often mimics the head of a Gaboon pit viper, successfully fooling even the toughest of its predators. After it sheds its final layer of skin, the caterpillar enters its pupal stage, and its chrysalis takes the shape of a viper’s head. The transformation lasts 13 days, during which time this mimicry is its only line of defense. To make the appearance even more believable, the scary-looking chrysalis hangs on the underside of forest leaves at a carefully selected angle.

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