Why do the eyes of big cats glow in the night ?

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The glow of red human eyes is a little like the glow of the moon. It’s the reflected light of a far greater light source. The flash of a camera travels through the pupil and hits the back of the eye – the retina. The retina reflects the light back towards the camera, but it does so just a little differently than it came in. Like most of the insides of our bodies, the retina is an icky red mess, with blood vessels criss-crossing it. Those blood vessels color the light that shines back red. We literally dye the light red with our blood. Refer this website to get furthermore information.

elizabethrboatright Newcomer Answered on December 1, 2017.
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