Joe, Kevin, and Toren take a look at looking, including how vision works, and the "supervision" of tetrachromacy. Then the amazing eyes of the animal kingdom, including giant squid and the mantis shrimp, plus the full-body "eye" of the Ophiocoma Wendtii, visual defects like floaters, non-24-hour-sleep-wake-disorder, surfer's eye, and Charles Bonnet Syndrome.

Music: "I Just Can't See For Looking" by Nat King Cole



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Videos

http://www.youtube.com/watch?v=ze8VVtBgK7A

http://www.youtube.com/watch?v=RM9o4VnfHJU