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Knowledge Cats Dirty Minds
Trees Hidden objects Forced Perspective

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

Forced perspective image Pisa tower

Forced Perspective

How to create optical illusion photos (for social media)

Knot of snakes

Knot of snakes illusion by the atticus atlas moth.

Source/credit: Lazaycopetant

This is knot of snakes is actually several moths (Attacus Atlas) sitting together. The tips of the wings of this moth look like snake heads to confuse preditors. 

Attacus Atlas

More optical illusions:

Cat Head
Camouflaged kitty
Live Wallpaper
Plane Crash
Too many legs
Black hole
Eye of a tree
Cross-stitch Cats
  • Pareidolia
  • Physical illusions
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Just a door in the middle of a beautiful scene, makes the background look like a giant wall with a live wallpaper.

Live Wallpaper

Buildings

This is the volcano Mount Etna in Sicily erupting. The bright lava against an almost invisible mountain looks like a Phoenix (or Mutalisk)

Phoenix rising

Nature