Useless trivia and facts

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When you cut a worm in two, it regenerates. That said, this only works if it’s cut widthways – and not all will. Earthworms can regrow their tails, and the planarian flatworm can regrow its whole body from a tiny sliver of tissue.

lis

Wind turbines kill between 10,000 and 100,000 birds each year in the UK. Interestingly, painting one of the blades of a wind turbine black can reduce bird deaths by 70 per cent.

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Snails have teeth. Between 1,000 and 12,000 teeth, to be precise. They aren’t like ours, though, so don’t be thinking about snails with ridiculous toothy grins. You’ll find the snail's tiny 'teeth' all over its file-like tongue.

lis

And the official name of the police officer in Monopoly is Officer Edgar Mallory.

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Sound can be minus decibels. The quietest place on Earth is Microsoft’s anechoic chamber in Redmond, WA, USA, at -20.6 decibels. These anechoic chambers are built out of heavy concrete and brick and are mounted on springs to stop vibrations from getting in through the floor.

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A horse normally has more than one horsepower. A study in 1993 showed that the maximum power a horse can produce is 18,000W, around 24 horsepower.

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Your signature could reveal personality traits. A study in 2016 purports that among men, a larger signature correlates with higher social bravado and, among women, a bigger signature correlates with narcissistic traits.

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One in 18 people have a third nipple. Known as polythelia, the third nipple is caused by a mutation in inactive genes.

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There’s no such thing as a straight line. Zoom in close enough to anything and you’ll spot irregularities. Even a laser light beam is slightly curved.

lis

Deaf people are known to use sign language in their sleep. A case study of a 71-year-old man with rapid eye movement disorder and a severe hearing impairment showed him using fluent sign language in his sleep, with researchers able to get an idea of what he was dreaming about thanks to those signs.