Scientists aren't sure what color dinosaurs were.
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Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
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Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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The left ear is more responsive to words of love and emotion whispered into it than the right.
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During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
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Research indicates that plants grow healthier when they are stroked.
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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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