2015 study suggests that just 10 minutes of chewing gum can remove 100 million bacteria from your mouth. It adds that it is as good as flossing!

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On a clear, moonless night the human eye can detect a match being struck 50 miles away.

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The shortest land border is 150 meters long and is shared by Botswana and Zambia

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The Ethiopian bible is the oldest, most complete and original bible on earth.

Written on goat skin in the early Ethiopian language of Ge’ez. It is also World’s first illustrated Christian Bible.

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The average erect gorilla penis is 1.25 inches (3cm) long, the average chimp or bonobo penis comes in at around 3.1″ (8cm) and the average human penis stands at around 5.1″ (13cm). Most primates, including chimpanzees, have a penis bone and achieve erections through muscle contraction.

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This is the Salvator Mundi, the most expensive painting ever sold. It depicts Jesus holding a transparent orb with his left hand and signing a cross with his right. It was sold in 2017 for $450.3M

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An adult produces enough hydrogen in their urine each year to drive a car 2,700 kilometres.

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A Chinese woman Ching Shih, nicknamed Mistress Zheng, was the most successful pirate in history. Ching's fleet consisted of approximately 400 pirate ships, and her army numbered 40,000 pirates. At the peak of her power, her army reached 80,000 members.

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Sailors once thought wearing gold earrings improved eyesight.

Earrings may have given pirates a bit of fashionable flair, but the accessories weren't worn simply for stylish reasons. Some pirates thought earrings could improve eyesight and ward off seasickness.

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A person who hides their pain behind a smile is called an “eccedentesiast.”

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The record for longest time without sleep was set in 1963 when 17 year-old Randy Gardner stayed awake on purpose for 11 straight days.

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Pandas do not have a special place to sleep, neither a bed nor a nest. Therefore, they fall asleep where they found themselves at the moment of fatigue.

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Onions are toxic to dogs. They can cause hemolytic anemia and result in death. A 45-lb. dog would only have to eat one medium to large onion to experience dangerous toxicity levels.

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Leonardo da Vinci worked on the Mona Lisa for 15 years. By the time he died in 1519, he still didn’t consider it finished.

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Capgras syndrome (CS) , this is a delusional misidentification syndrome where the victim is convinced that their loved ones (family, pets, close friends) are replaced by imposters. Sometimes, the delusion is about more distant people, pets, or even objects. No amount of reasoning can change their minds.

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The human nose can recognise over 1,000,000,000,000 different smells.

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