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Smart Disguise

Believe me, I'm an owl.
disguise tr.v.
1. a. To modify the manner or appearance of in order to prevent recognition. b. To furnish with a disguise.
2. To conceal or obscure by dissemblance or false show; misrepresent.
Source: Webster Dictionary.
Do you think that maybe the eyespot pattern on the wings is a funny pigmentation that is interpreted as eyes only by human observers? If yes, then you may find interesting to read what happens when butterflies of a wet season are realeased among resident butterflies in a dry season, and some other studies from: