A person’s pupils may be of different sizes (anisocoria) for several reasons, including physical trauma, response to light, and infection. The condition may also be present from birth. Pupils, or the ...
It's easy to think of pupils as simple holes that widen in the dark and shrink in the light. But if you look across the animal kingdom, you'll see a variety of pupil shapes: vertical slits in cats and ...
Hello all, it’s Manasee Wagh, service and news editor at PopMech. Years ago, I had a cat named Cyrus. I used to stare at him staring at me, and wonder what he was thinking. He had beautiful gold-green ...
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