THIS IS JACK WITH JACK’S FACTS AND HERE IS TODAY’S FACT. PRARIE DOGS CONVEY IMFORMATION BY VARRYING THE TONES OF THEIR BARKS. IN SOME HUMAN LANGUGES, SUCH AS CHINESE, THE SAME WORD MAY MEAN DIFFERENT THINGS DEPENDING ON HOW IT IS INFLICTED. FOR PRARIE DOGS, THE PITCH OF THE BARK, RISING AND FALLING IN A PARTICULAR WAY, TELLS THE STORY.

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