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Knowledge Cats Dirty Minds
Trees Advertizing Hidden objects

Knowledge

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

Billie Eilish drawn in 3D by Stephan Pabst

Anamorphic optical illusions

sorrowful rock face pareidolia

How do optical illusions work?

Is this a bird or a rabbit?

Ambiguous illusions

Ominous bird

This optical illusion of an ominous bird is actually a moth orchid

Source/credit: mohamed elsaid

This ominus bird is actually a moth orchid, or Phalaenopsis. In this fantastic close up picture by Mohamed Elsaid, the middle of the flower looks like a beautiful bird. Nature has many amazing optical illusions.

 

More optical illusions:

Absolutely impossible
The Grinch
Floating Baby Boy
Tippy toes
Pipe Cleaner Arms
Dog Log
Broken Chair
Laurel the Tree
  • Pareidolia
  • Physical illusions
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This patrol pup is a giant dog and can ride his owner around.

Pup Patrol

Dogs

The white egret flower, or Pecteilis radiata is a species of orchid found in China, Japan, Korea and Russia.

White Egret

Birds