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"Under conditions of low light, iris muscles contract to dilate the pupils (those of many deep-sea sharks are permanently dilated, to capture what little light flickers in their realm of perpetual darkness); under high light conditions, the iris muscles relax and the pupil contracts. As unimpressive as this may seem to humans, accustomed to having their pupils dilate and contract continually, realize that no teleost fish can do this - which explains why most bony fishes always seem to be staring blankly into next week. Pupil contraction can also increase a shark's visual depth of field (range of depths that are in focus), in much the same way as we can extend our focal range under harsh light conditions by squinting.
Although many sharks have eyes with slit-like pupils, those of the Great White appear dark as buttons of onyx. Yet if one looks into the eye of a living individual from up close, internal structure can be discerned. The pupil is circular, the iris dark and ringed with a spectral hint of midnight blue. Although the eyes can be rotated within their sockets, when relaxed and not obviously tracking an object, a White Shark's eyes seem to be oriented forward and down. This orientation may explain why these animals often cruise past a caged diver slightly above his or her eye-level: the better to visually inspect the strange, bubbling biped." -Elasmo Research
What else can I help you with?
What eye size do sharks have?
frilled sharks have huge balls and huge eyes
Does the Great white shark have poor eyesight?
No, great white sharks have excellent eye sight although they do hunt during the day due to the sun getting in their eyes distrupting their vision. This is why most attacks occur at night and early morning
What is the color of the eye of young white rabbit?
The usual colour of the white rabbit's eye is red.
Why is white of eye softened?
it's the brightest color.
What would be a deers eye color be with a white flashlight?
A deer's eye color with a white flashlight would be greenish yellow or yellow. This light is gathered by the eye while a portion is reflected back at the flashlight.
How can white be a color?
Color is any pretty much any variance in light that is detected by the cone cells in the human eye. In physics, white is any surface that does not absorb color. Instead it reflects it all off making it appear white to the cones of the eye.
Is the word white an adverb?
The word white as a color is an adjective. It refers to a noun, not a verb. It can also be a noun meaning the color white, or the white part of an egg or of an eye
Which gender can have white eyes if the female parent is homozygous dominant for red eyes and if the male parent has white eyes?
The offspring will have red eyes because the mother is homozygous dominant for red eye color. White eye color is a recessive trait and can only be expressed when both parents pass on the white allele. Since the father has white eyes, the male offspring will inherit the white eye color.
What does the eye see better color or black and white?
There is no way to tell what color the eye sees better for everyone. Some people are colorblind for example.
What color is eye when ones blined?
its usually like a milky white color... but it can also be a LIGHT blue.
How do you immobilize a great white shark?
You can irritate or kill a shark by jabbing you finger or any weapon into its eye ball, nose, or gill , this will at least make the shark harmless to you.
What are rare colors for Siberian huskies?
I really don't think there is a rare color for Siberians, they can have red/white, black/white, gray/white, brownish/white or pure white coats. Same with eye color they could have many colors or one of each or one eye with two colors.
