Rwanda was the first country to ban plastic bags in 2008.

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Breathalyzers are extremely inaccurate and overestimate the Blood Alcohol Content about 25% of the time, and vary about 15% from actual Blood Alcohol Content.

People with diabetes, or a fever, or who have used chemicals like oil-based paint will register Blood Alcohol Content over the legal limit even if they've had no drinks.

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Those who play video games are far more likely to have vivid dreams

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In a process known as “superfetation,” a woman can get pregnant while already pregnant. Superfetation is a rare event where a second egg is fertilized and implants in the uterus after an initial pregnancy has begun, resulting in two pregnancies occurring simultaneously.

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About 2,200,000 stone blocks, stacked in 210 rows, were used to build the pyramid of Cheops.

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About 2% of people possess strong empathy, which allows them to feel pain when they see another person experiencing it.

This phenomenon is known as synesthetic pain.

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The longest walk ever taken place was by George Meegan. He walked from the bottom of South America to the top of North America. He took 41 million steps, wore out 12.5 pairs of shoes, and collected 8 world records.

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Chameleons can change not only the color of their skin but also the shape of their body, adapting to their environment.

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The eyes of a donkey are positioned in such a way that all four of its legs are always within its field of vision.

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The probability of giving birth to a left-handed child is twice as high for mothers over 40 years old compared to women under 30.

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Kidney transplants don’t remove the original kidneys.

Instead, a donor kidney is placed in the lower abdomen to filter blood. The original kidneys usually stay in place.

This means some people end up with three kidneys in total—two old ones and one new.
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If you give up sugar, your taste buds will improve.

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In Korea, age is counted from conception, not birth.

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There is a bird named Honeyguide, which guides humans to beehives, so that they can feast on the bee larvae after humans takes the honey.

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A person has about 2 million sweat glands.

The average adult loses 540 calories with every liter of sweat. Men sweat approximately 40% more than women.

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