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The simplest “eyes”, such as those in microorganisms, do nothing but detect whether the surroundings are light or dark, which is sufficient for the entrainment of circadian rhythms.
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The Cinematic and Cultural Legacy of Farokh Ghafari
Farrukh Ghaffari (February 26, 1922-December 17, 2006) was a film director, actor, critic and author. …