Similar to what happens in our eyes, shark pupils dilate in the dark to allow more light to enter the eye and therefore improve night vision.

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Size: 5568px × 3712px
Location: fakarava, french polynesia
Photo credit: © Hannes Klostermann / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: beauty, coral, grey, jaws, landscape, natural, nature, night, orientation, photography, reef, shark, underwater, wildlife