Sunday 17 December 2017

Can a cat see in pitch black?

The answer to the question, "can a cat see in pitch black?" must be NO because you need some light to impinge upon the retina for the retina to then send a signal to the brain. Pitch black means absolutely no light. Despite the fact that the cat's eyes are more sensitive to ours and their vision at night is excellent, they cannot see in total darkness. No animal can.

Light reflected from the cat's retina. A typical nighttime scene. Hence the phrase "cat's eyes" to mean the center line road markings by reflective glass marbles invented in Yorkshire, UK.

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