The Phasmatodea are characterized by their larger than average body size compared to other insect species and their often bizarre body shape, which is reminiscent of parts of plants. They are often extremely thin and long like a piece of wood or leaf-shaped.
They often perfect their camouflage by the leaf-shaped bodies by adapting the color to their surroundings. So they can hardly be discovered between leaves, twigs and bark.
Above their front legs, phasmatodea have glands from which they can release a defensive secretion. The secretion often smells strong and very unappetizing, but it can also be a chemically corrosive substance. This is how the phasmatodea defend themselves from their predators.