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Originally Posted by ZaphodBeeblebrox
What'll Be Even Weirder, Is If we Ever Discover Creatures, Who Evolved Under a Different Sun ...
In The Latest Book, In his Worldwar/Colonization Series, Harry Turtledove Reveals The Main Aliens, a.k.a. The Race or The Lizards, See TWO Colours In The Infra-Red, And Can't See Violet to Boot ...
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I read where white tail deer are dichromatic (two color cones). They can see blue and slightly into the uv range with one, and, green and yellow with the other, IIRC. This plus their larger eyes, should allow them to see all the deer hunters as they sneak into their deer blinds. I don't know if these have evolved from unnatural selective pressure. 
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Lighten up! This is a stellar board! Author: duh.
"The Sun, with all the planets revolving around it, and depending on it, can still ripen a bunch of grapes as though it had nothing else in the universe to do..." Author: Galileo supposedly.
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