Giraffes are 30 times more likely to get hit by lightning than people. True, there are only five well-documented fatal lightning strikes on giraffes between 1996 and 2010. But due to the population of the species being just 140,000 during this time, it makes for about 0.003 lightning deaths per thousand giraffes each year. This is 30 times the equivalent fatality rate for humans.

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This is the world’s smallest artificial heart. It kept a 16-month-old baby alive for 13 days until a donor heart became available.

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The human brain has enough memory to hold three million hours of television. The brain's memory is 2.5 petabytes. You would have to leave the TV running continuously for more than 300 years to use up all that storage.

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

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Cows have best friends and can become stressed when they are separated from them. They form strong social bonds with other cows.

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One of the four major deserts in China has disappeared as 93.24% of the devastated lands have become green. All thanks to the local residents who have been planting trees in the desert for 60 years

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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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Watching a 90-minute horror movie can, on average, burn approximately 150 calories, which is the same amount as a 30-minute walk.

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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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The Netherlands sends Canada 20,000 tulips each year as a token of gratitude for its help during World War II.

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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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New York's Central Park is twice the size of the Principality of Monaco and ten times the size of the Vatican.

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People tend to fall in love with the person who is more like your parents.

Some researchs found that men often favor women who resemble their mother when choosing mates. Similarly, the study showed that women prefer male faces that resemble their fathers. These findings were later reported in a 2002 New Scientist magazine article titled “Like Father Like Husband."

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