Stationary stick insect imitating a twig, camouflage strategy

stick insect twig phasmid phasmatodea walking sticks phasmatodeans resemble twigs stickbugs phasmids ghost insects plant mimicry insect polyneoptera stick like mimicry closeup insecta close up conceal phasmotodea detail camouflaged invertebrate rainforest green brown zoom forest nature colouration herbivore camouflage detailed survival jungle exotic outdoors imitate south america tambopata still tropics national reserve stationary wild legs strategy peru madre de dios