Urea (the substance contained in the urine) is added to cigarettes for additional flavor.

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If a guide dog without an owner comes up to you on the street, it means that the owner is in trouble somewhere nearby and needs help. Remember this, and one day you might save someone's life.

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One fugu fish contains enough poison to kill 30 people and there is no antidote.

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0.06 seconds is the time it takes dogs to determine which direction the sound source is in.

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Jaguars are excellent swimmers. They love water and prefer to settle near bodies of water. They catch fish or open the shells of river turtles.

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Champion was the first brand to create the ‘hoodie’ all the way back in 1938.

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Smallpox is the only human disease that has been successfully eradicated. it has no cure, and the vaccine against it was the first and most successful vaccine.

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To quickly charge your phone, you need to turn on airplane mode, and the process will go much faster.

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Magpies help other animals by plucking ticks and other parasites from their skins. They can pull them out even if they have a strong grip.

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If a pregnant woman has damage to a certain organ, the baby in her stomach will “send” stem cells for recovery.

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George Washington died in 1799 after doctors drained nearly 40% of his blood in an attempt to cure a sore throat.

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In ancient India, Diabetes was called “madhumeha” or “honey urine” as the urine would attract ants. Indian physicians Sushruta and Charaka identified Type 1 and Type 2 diabetes as separate conditions for the first time in 400-500 CE.

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Australia was originally called New Holland.

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The first person who used "smiley face" was Scott Fahlman, who typed ":-)" symbols to indicate a smile during the BBC chat show in 1982.

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The U.S. Geological Survey (USGS) scientists believe that the Moon experiences "lunar tremors" similar to earthquakes occurring on Earth. They take place due to tidal distortion related to a changing distance between Earth and the Moon.

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In 1962 there was a laughing epidemic in what was Tanganyika that caused 14 schools to shut down and affected over 1000 people.

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When we look at something we really like, our pupils increase by 45%.

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The word “peacock” does not actually apply to both male and female birds.

It’s only the males that are called peacocks, while the females are called peahens. Together, the collective name for them is “peafowl.”

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Athletes' teeth are prone to caries. During exercise, they breathe through their mouths, which causes their teeth to dry out and the process of plaque formation to accelerate.

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Lions inhabited many parts of Europe until they were hunted to extinction around 100 B.C.

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Evolution: the kiwi birds are losing their vision

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