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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Optical illusions occur when what the eyes see conflicts with what the brain expects.
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Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
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If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
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According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
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One third of the electricity produced on earth is used to power electric light bulbs!
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