People produce around 25,000 quarts of saliva in their lifetime. That's enough to fill two backyard swimming pools.
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HorrorDid you know that cats are able to see spirits? Or that the universe could just explode in a few billion years? Those are just a few scary facts. In this book, I'll be telling you scary facts about life, death, Earth, space, and much more. So turn o...
Saliva
People produce around 25,000 quarts of saliva in their lifetime. That's enough to fill two backyard swimming pools.
