Some ribbon worms will eat themselves if they can't find any food.

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It takes approximately 12 hours for food to entirely digest.

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Earth is the only planet not named after a Roman or Greek god.

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When glass breaks, the cracks move at speeds of more than 4,500 km/h (3,000 miles).

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The amount of water beneath our ground soil is 50 times as much as all the water in the rivers and lakes combined.

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Human thigh bones are stronger than concrete.

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The many sights that represent the Chinese city of Beijing were built by foreigners: the Forbidden City was built by the Mongols, the Temple of Heaven by the Manchurians.

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A bee sting is acidic and a wasp sting is alkali. To treat a sting by one of these you should use the opposite type of chemical.

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Shortest Intercontinental Commercial Flight in the world is from Gibraltar (Europe) to Tangier (Africa.) Distance 34 miles, flight time 20 minutes.

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The seeds of an Indian Lotus tree remain viable for 300 to 400 years.

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