Back to patterns.
http://dailypost.wordpress.com/category/photo-challenges/
So by the way re the zebra – Form of camouflage called disruptive coloration that breaks up the outline of the body.
In the evening or dawn when predators are most active zebras seem to look indistinct. = an Optical illusion or what?
Some patterns can create optical illusions, example the one below.
Can you see it move- and does it really?
http://www.moillusions.com/2013/03/eye-of-the-dragon-illusion.html
Just Fletcher 
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