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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The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
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The University of Oxford (teaching since 1096) predates the Aztec empire (1428 - 1521).
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The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
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Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
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The largest breed of rabbit is the Flemish Giant.
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