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A cat sees about 6 times better than a human at night, and needs 1/6 the amount of of light that a human does - it has a layer of extra reflecting cells which absorb light.

Well, we seem to be getting further and further away from the main topic.

Cats have 30 vertebrae (humans have 33 vertebrae during early development; 26 after the sacral and coccygeal regions fuse)

So they're more flexible, right?

Cats have 32 muscles that control the outer ear (humans have only 6). A cat can independently rotate its ears 180 degrees.

And cat ear culture is very popular in Japan.

The average lifespan of an outdoor-only cat is about 3 to 5 years while an indoor-only cat can live 16 years or much longer.

I used to have a cat, he lived for 15 years, and after he died, I didn't have a cat anymore