Forgetfulness is good for the brain

Removing unnecessary information helps the nervous system stay flexible

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The kakapo is the world's only flightless parrot

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Surfing is included in school curricula in Hawaii

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In the Livermore fire brigade hangs a 4 watt electric light bulb that has been working almost continuously since 1901

It's only gone out a few times during power outages and twice during moves

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A woman's body contains 6 times more gold than a man's

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A chameleon takes 20 to 30 seconds to change colour

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The Tibetan Mastiff is one of the biggest dogs on earth

The Tibetan Mastiff was bred centuries ago to guard ancient monasteries, villages and flocks of sheep high in the mountains

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Three very important ingredients that keep the brain healthy: chocolate, laughter and sex

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Because of the polar night, the surface of the Arctic Ocean cools continuously for 50-150 days a year

Winter lasts about 6.5 months in the region, and summers are sunny but cold, so the Arctic ice hardly ever shrinks in size

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Measuring swimming costume lengths on the beach in the 1920s

If a swimming costume was too short, women were fined

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Pepsi can be distinguished by its citrus and sweeter taste, and Coca-Cola by its vanilla scent

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In the East, hookah smoking is a tradition akin to Japanese tea-drinking ceremonies

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In ancient Rome, if a patient died during surgery, the doctor's hands were cut off

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In the US state of Alabama, there is a ban on sprinkling salt on railway tracks

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Running improves memory and brain activity

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All monkeys laugh if you tickle them

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Birthdays are not celebrated in the Maldives. In fact, they don't even try to remember the date

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11% of people on earth are left-handed

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The Moscow Kremlin is the world's largest medieval fortress. The total length of the Kremlin walls is 2,235 metres

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Colour change, depending on where you live

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Flamingos do not turn pink from birth, but because of their diet. They eat blue-green seaweed, which turns pink during digestion

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