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love the cat with all my heart

The cheetah is the world's fastest land mammal. It can run at speeds of up to 70 miles an hour (113 kilometers an hour).

fantastic, it exceeds the speed of someone while cycling

A cat’s heart beats nearly twice as fast as a human heart, at 110 to 140 beats a minute.

slow while sleeping soundly

The average lifespan of an outdoor-only (feral and non-feral) is about 3 years; an indoor-only cat can live 16 years and longer. Some cats have been documented to have a longevity of 34 years.

my cat only lasted 10 years, but before death, he disappeared mysteriously

The life expectancy of cats has nearly doubled over the last fifty years.