I was truly amazed by the beauty and diversity of these pictures.
From an iguana to a python, these colorful pictures show the intricate differences and delicate detail among a variety of animal eyes.
To me, the most remarkable is the eye of the veiled chameleon (top photo). The creature's upper and lower eyelids are joined together; sees through just a pinhole-sized pupil that rotates 360 degrees, according to the UK's Daily Mail.
All of the photos, except for the penguin, were photographed by Joel Satore from Nebraska, who used a Nikon D-3 camera with either a 60mm or 105mm macro lens.