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Different kinds of light sensitive organs are found in a variety of organisms. The simplest eyes do nothing but detect whether the surroundings are light or dark, while more complex eyes can distinguish shapes and colors. The visual fields of some such complex eyes largely overlap, to allow better depth perception, as in humans; and others are placed so as to minimize the overlap, such as in rabbits and chameleons.
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The different forms of eyes in, for example, vertebrates and mollusks are often cited as examples of parallel evolution, despite their, READ ON...
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25 line per minute of arc.25 = 9000 pixels in each of the X and Y dimensions, or about 81 megapixels.[12] The sclera gives the eye most of its white color. night vs. Some of the simplest eyes, called ocelli, can be found in animals like snails, who cannot actually "see" in the normal sense.Compound eye of Antarctic krill. Other animals have other ranges, with many such as birds including a significant ultraviolet (shorter than 400 nm) response. If all
Other animals have other ranges, with many such as birds including a significant ultraviolet (shorter than 400 nm) response. With each eye viewing a different angle, a fused image from all the eyes is produced in the brain, providing very wide-angle, high-resolution images.In many species, the eyes are inset in the portion of the skull known as the tunica fibrosa oculi, is the outer layer of the
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