Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Apr 8, 2014
The ability to see the world in color is one most people take for granted. But our earliest primate ancestors lacked this ability. When and how did we gain the ability to see the world the way we do? Neil Shubin pays a visit to vision expert Jay Neitz to learn where our color vision comes from.
YOUR INNER FISH airs Wednesdays, April 9-23, 2014 at 10/9c as part of PBS' THINK WEDNESDAY.