european stick insect camouflaged on rock in sardinia, italy

camouflage animal wildlife insect entomology nature european fauna stick bug wild closeup leaf invertebrate bacillus rossius outdoor biology natural green animals brown background beautiful tree phasmatodea macro disguise arthropod hunter color creature leg insects forest biodiversity exoskeleton predator camouflaged rock sardinia italy close-up clonopsis gallica perched rock rocky surface long thin body legs extended giving stick-like appearance generated