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Knowledge

Facts, science and history of optical illusions.
See all the articles or scroll down to see what you came for.

Can animals see optical illusions? Hosico cat shows it with optical illusion rug

Animals and optical illusions

sorrowful rock face pareidolia

How do optical illusions work?

Rainbows are illusions

Types of Optical Illusions

Elvish Writing

Elvish writing

Source/credit: raohdy

It is cracked paint

More optical illusions:

Parked too long?
Parking ramp
Black hole
Shadow
Baby Ostrich
Assorted Dried Beans
Goofy Tree
Thats the cat's pajamas
  • Pareidolia
  • Physical illusions
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Find the cat

Cat a log

Cats

High-rise buildings optical illusion

High-rise buidings

Objects