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Inside the Eye: Nature’s Most Exquisite Creation
To understand how animals see, look through their eyes. By Ed Yong. (Feb. 2016)
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How cats see the world compared to humans
What do cats see? Artist Nickolay Lamm consulted three experts to hypothesize how cats view the world compared to humans. The biggest difference between human vision and cat vision is in the retina, a layer of tissue at the back of the eye that contains cells called photoreceptors. The photoreceptors convert light rays into electrical signals, which are processed by nerve cells, sent to the brain, and translated into the images we see.
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Strange Eye Proteins Allow Birds to Actually See Earth's Magnetic Field
Two new studies by Universities in Sweden and Germany show evidence that birds navigate by literally seeing Earth’s magnetic field in their vision, thanks to eye proteins called cryptochromes, which might operate through a mechanism called magnetoreception. By Sequoyah Kennedy.
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Animals with 'night vision goggles'
Could you survive in pitch-black conditions? Meet the animals that not only survive but thrive. By Jonathan Amos.
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Scientists Injected Nanoparticles Into Mice's Eyes to Give Them Infrared Vision
It’s easy to forget it, but much of the world is invisible to us. I don’t mean that in the sense of things being really tiny, or in any metaphorical way. No, most of the world is literally invisible. That’s because what we call visible light is actually a tiny sliver of the much greater electromagnetic spectrum. The rainbow we see sits in the middle of a vast continuum of wavelengths, including everything from high energy gamma and ultraviolet radiation to much lower infrared and radio waves.
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The women with superhuman vision
As Concetta Antico took her pupils to the park for an art lesson, she would often question them about the many shades she saw flashing before her eyes. “I’d say, ‘Look at the light on the water – can you see the pink shimmering across that rock? Can you see the red on the edge of that leaf there?’” The students would all nod in agreement. It was only years later that she realised they were just too polite to tell the truth: the colours she saw so vividly were invisible to them.
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Brain Scans Show Why Our Mind's Eye Sees The World So Differently to Everyday Vision
Researchers have discovered a neural overlap between human and machine that helps to explain why what we see in our mind's eye is different to the information being processed by our actual eyes when we're peering at something in reality.
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Everything You See Is From 15 Seconds in the Past, New Research Claims
Open the camera app on your phone and start recording a video. Place the screen right in front of your eyes and try to use the live footage as a viewfinder. Tricky, right? The shapes, colors, and motion in the video are jarring. Scientists say this exercise is a close approximation of the messy visual data that our eyes constantly bombard our brain with. So how exactly do we see without feeling dizzy or nauseated?
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