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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Your thumb is about the same size as your nose.
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Cows can sleep standing up, but they can only dream lying down.
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The largest breed of rabbit is the Flemish Giant.
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You forget 90% of your dreams.
256
Only about 2% of the world population has green eyes.
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Iceland has been so culturally isolated through history since the Vikings, that compared to other Scandinavian counties, people who speak Icelandic can still read the old Norsk sagas.
4