| Cat's urine glows under a blacklight. |
| The oldest domestic cat (with reliable documentation) was a female tabby named "Ma" that lived to be 34 years old. |
| In ancient Egypt, killing a cat was a crime punishable by death. |
| Cats do not have a collarbone, so they can fit through any opening the size of their head. |
| In 7 years, one female cat and her babies can theoretically be the source of 420,000 cats. |
| A large majority of white cats with blue eyes are deaf. White cats with only one blue eye are deaf only in the ear closest to the blue eye. White cats with orange eyes do not have this disability. |
| Cats lose almost as much fluid in the saliva while grooming themselves as they do through urination. |
| Ancient Egyptians shaved off their eyebrows to mourn the death of their cats. |
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