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They have a tube like shape to them, rather then round, giving them a pretty large cornea that makes possible more light to enter the eye. The tube-like shape also gives a comparatively large retina size witch is jam-packed full of light sensitive rods, about 56,000/sq mm. In the Tawny Owl. These rods are way more sensitive than cones at low levels. (P.S., I'm a 11 year old homeschooler.) :)

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15y ago

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