 In mimesis ( also called masquerade ) , the camouflaged object looks like something else which is of no special interest to the observer . Mimesis is common in prey animals , for example when a peppered moth caterpillar mimics a twig , or a grasshopper mimics a dry leaf . It is also found in nest structures ; some eusocial wasps , such as Leipomeles dorsata , build a nest envelope in patterns that mimic the leaves surrounding the nest . 
