Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
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Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
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Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
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Pure water (H2O) does not conduct electricity on its own.
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Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
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Because heat expands the metal, the Eiffel Tower always leans away from the sun.
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Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
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