Currently there over 500,000,000 domestic cats in the world (only one for every 15 people).

Cats sleep for an average of around 14 hours a day (60% of their lives, however studies lean towards 70%)

The heaviest domestic cat on record weighed in at 21.3 kg. That is over 5x the average of 4kg. In one episode it is mentioned that Garfield is 20 pounds overweight. Based on the average, Garfield would weigh in at 13kg, still 8kg less than the heaviest domestic cat.

When cats walk, they only leave one set of footprints because their back paws step almost exactly in the same places as their front paws. This helps reduce noise and leaves less tracks, perfect for a sneaky hunter. They also have excellent hearing and sense of smell. Their most useful ability is their very powerful night vision.

Older cats despise younger cats. A tiny kitten is a threat to many adult cats, as in nature, it would still be with its mother for up to about 6 months old, under her care and protection. The older cats may be wary that the mother will come around looking for her kitten, and that would mean trouble for them if caught near the kitten.

A cat was the mayor of Talkeetna, Alaska, for over 20 years. His name is Stubbs. The average life expectancy of a cat lies at around 14 years. Stubbs went above and beyond by working his whole life for his city (He pa.s.sed away in 2017).

The century old question, cats or dogs seems to weigh in favor of cats as in 2014 there were 88 million pet cats and 74 million dogs. These results may or may not be heavily influenced by older woman who happen to be cat enthusiasts and keep a few too many. [These numbers are old but I haven't found any conclusive numbers]