Hummingbirds are the only birds that can fly backward.

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Octopuses have three hearts.

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A whale's heart beats only 9 times per minute.

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🚴🏻 A Slovenian cyclist took a picture of his leg after a race. Users marveled: "That's not a person's leg, it's a machine's leg. The athlete took 38th place.

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😱 Microplastics have been found in human blood for the first time.

Scientists in the Netherlands took blood samples from 22 healthy adult donors and found plastic particles in 17 of them.

These are particles of PET plastic, which is commonly used in bottles, as well as polystyrene and polyethylene, which are used to make bags and food packages.

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😡 Hunger can cause anger, irritation, and bad moods.

When blood glucose levels drop, your brain sends signals to release regulatory hormones. One of these is adrenaline, the stress hormone.

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Approximately 90% of all money in the world is in digital format.

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Tigers are almost invisible to some prey, as many animals cannot distinguish the color orange.

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19% of the world's electricity is spent on lighting.

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A single strand of Spaghetti is called a “Spaghetto.”

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The most common name in the world is Muhammad.

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A squirrel is the best gardener. Millions of trees grow only because squirrels forget, where they hid their seeds.

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People read on paper 25% faster than on screen.

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The first commercial passenger flight lasted only 23 minutes. 🛩️

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☎️ In Portugal, employers are not allowed to call or write to their employees outside of working hours.

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The Only black leader to attend JFK's funeral was Emperor Hailesilassie of Ethiopia.

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Black chocolate promotes blood flow to the most important areas of the brain for 2-3 hours.

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The energy released by a hurricane is equivalent to the energy released by 10,000 nuclear bombs.

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In 1811 and 1812, three earthquakes measuring approximately 8 on the Richter scale caused the Mississippi River to flow backwards.

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Meet Isabukuru, a gorilla under protection in Rwanda. There are only about 650 of these remarkable animals left in the world.

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One electric shock of this magnitude is enough to start 50 cars or kill one horse.

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