Cheetahs are the only big cat that cannot roar. They can purr though and usually purr most loudly when they are grooming or sitting near other cheetahs.

It would take approximately twenty-four trees that are on average six to eight inches in diameter to produce one ton of newsprint for the Sunday edition of the New York Times.

Eleven top executives of the Direct Marketing Association (the telemarketers' group that is trying to kill the federal "Do Not Call" list) have registered for the list themselves.

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