The smallest country in the world is the Vatican. Its population is less than 900 people, but as the population grows, the state occupies one of the first places in the world.

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Rats laugh when tickled.

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A cockroach can live without food for 2.5 months. A cockroach without a head for 2 weeks.

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Neanimorphic: Appearing younger than one's actual age.

Bananas not only come in yellow, but also in red. Red bananas have more delicate flesh, and they do not survive transportation.

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Didaskaleinophobia is the fear of going to school.

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Sharks eat everything. The stomachs of these predators have been found in boat wrecks, car tires, and even knight's armor.

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The average person falls asleep in about 10 to 20 minutes.

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Pandas can produce as much as 48 pounds of poo every day.

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If you scream in space, you won't hear yourself.

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Video games improve a young person's mood and self-esteem.

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Monkeys urinate on themselves to attract the attention of females.

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When we sleep in a new environment, our brains enter survival mode; with only one hemisphere resting at a time, according to scientists from Brown University

This is why we often wake up feeling groggy and may even be awakened by the slightest noise at night.

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30% of people have never been in a hospital.

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Who else loves that earthy smell when rain hits the ground? It's called Petrichor.

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"Erotomania" is a type of delusion where the affected person believes another individual, usually a celebrity, is in love with them.

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It takes a whole cow to make 400 burgers.

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Blood is always red. However, our veins look blue because only blue light waves can penetrate the skin.

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Thinking processes burn calories.

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What a hair looks like under a microscope.

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Goat milk digests in only 20 minutes while cow milk takes up to 2-3 hours to digest.

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