IntroductionHuman symmetry perception


Bifold reflective symmetry in fractal noise. 

Bilateral animal symmetry on zebra hides.


Plant symmetry. A maple leaf exhibits repetition symmetry, mirror symmetry and sizescaled symmetry. 

Microscopic plankton exhibit accurate radial and other symmetries. 

Spiral symmetry in a sunflower head. 

Symmetry of human construction: an art deco door. 
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The eye page 
Symmetry demonstration 
Tyler lab 
SK Eye Research 