**Bone weight is only 15% of total body weight.

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🧠 Experts from the University of Virginia have found that the human brain begins to age at the age of 27.

Interestingly, the peak of this organ's capabilities occurs at 22 years old.

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Android was originally created as an operating system for digital cameras.

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A bite from a common tick can cause a permanent anaphylactic meat and milk allergy in people.

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Potato poisoning can cause paralysis, coma, and hallucinations for days. If left untreated, also death.

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Albatrosses can sleep during flight. While one part of the brain sleeps, the other part remains active and helps the bird not to fall and crash into an obstacle.

Dolphins have the same ability to swim in their sleep.

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🐫 Camels store up to 30 kg of nutrient-rich fat in their humps.

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There is more genetic variety within Africa than the rest of the world combined. In other words, Western Europeans and East Asians are potentially more genetically similar to each other than two Africans from the same village (assuming no family lineage).

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Because of its constant smile, the quokka is known to be the happiest animal.

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The longest straight railway is in Australia. For 478 km there is not a single turn

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During WWII, the Japanese Bombed China with fleas and other insects with the Bubonic Plague (Black Death) creating massive epidemic outbreaks.

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The smell of rain is caused by gases released by bacteria living in the soil, reacting to the rainwater that seeps into the ground.

This smell has its own name - petrichor.

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Fireworks were originally invented in 7th century China, where they were believed to ward off evil spirits.

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⏱ Original Rolex watches can be recognized by the smooth movement of the second hand: unlike fakes, it does not tick.

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🦫 Underwater, beavers can hold their breath for 15 minutes.

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China is the birthplace of the seismograph. Built in 132 A.D., it consisted of 8 metal dragons holding 8 carved balls over 8 frogs. If an earthquake made the ground vibrate, the dragon facing the quake’s source would drop a ball into the mouth of its corresponding frog.

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The world's longest leaves are found on palm trees growing in Madagascar. They grow up to 20 meters in length

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The tiny pocket in jeans was designed to store pocket watches.

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