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That’s Not a Leaf

Two species of Phasmatodea in Paris in 2018.
Two species of Phasmatodea in Paris in 2018. Photo: FRANCOIS GUILLOT/AFP (Getty Images)

Thank the deity of your choice for the genus Phasmatodea. That’s the entire group we collectively call stick insects, invertebrates that mimic the limbs and leaves of trees. For the most part, they’re very long and slender (hence the whole “stick” thing). The largest stick insect is also the largest insect in the world, at over 2 feet long. The animals are typically the mottled browns or vivid greens you expect in a forest setting; though massive, you could walk right by one thinking it was flora, not fauna.