Celebrating National Cat Day

National Cat Day is celebrated October 29 of every year. An Estimated amount of cats in the US: 74-96 million cats which means about 30% of the households in the USA have a cat. To celebrate the day, Did you know that  in 2000, scientists in UC Berkeley, used cats to find out more about human vision?

The cat's slit-shaped pupil changes size in response to light much more quickly than our round pupils

The cat’s slit-shaped pupil changes size in response to light much more quickly than our round pupils

Cat’s night vision is better than humans. While we need light, they only need about 1/6 of the light we have to have to see . The muscles of the iris surrounding the pupils are constructed in a fashion that allows the eye to narrow to a vertical slit in bright light and to open fully in very dim light, to allow a maximum of illumination. You will see this in other animals as well.

Found on kingdom-of-animals.tumblr.com

Found on kingdom-of-animals.tumblr.com

Cats do see in colors, not as well as we do, so the myth that cats are color blind is not true.

The exotic Turkish Van cat breed is known for its snowy white coat and naturally occurring blue and amber eyes.

The exotic Turkish Van cat breed is known for its snowy white coat and naturally occurring blue and amber eyes.

Most white blue-eyed cats are deaf. A white cat with odd-eyes (one blue and one green or gold) will most often be deaf on the side with the blue eye.

Cats do not need to blink to keep their eyes moist.

Normal human vision is 20/20. A normal cat sees at 20/100

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