The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
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Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
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Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
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Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
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Some toothpastes and deodorants contain the same chemicals found in antifreeze.
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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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Galalith is a type of plastic that can be made from milk. It is odourless, insoluble in water, biodegradable, anti-allergenic, antistatic, and virtually non-flammable.
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