The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
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Lurch, a Watusi bull, had the largest horns in the world.
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Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
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In Georgia, there is an airtight room called the Crypt of Civilization that was sealed in 1940. It contains numerous artefacts documenting what life was like at the time of sealing, and is scheduled to be opened in the year 8113 to show people of the future exactly what life was like.
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In the last 7 years, humanity has discovered 43 potentially habitable planets.
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Your body is creating and killing about 2.4 million red blood cells per second.
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There are so many kinds of apples that if you ate a new one everyday, it would take over 20 years to try them all.
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