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http://www.cheatcc.com/xbox360/sg/batman_arkham_city_guide.html#.TqL0gpuvhgE
Alien planets might teem with purple — yes, purple — life
-
Life on alien worlds may not be green, like many organisms on Earth, but
instead may be purple. Microbes with purple-pigments may be better suited
to survi...
1 hour ago