20+ random fun facts to have on hand at your next dinner party

1. Avocados are a fruit, not a vegetable. They're technically considered a single-seeded berry, believe it or not
2. The Eiffel Tower can be 15 cm taller during the summer, due to thermal expansion meaning the iron heats up, the particles gain kinetic energy and take up more space.

Trypophobia is the fear of closely-packed holes. Or more specifically, "an aversion to the sight of irregular patterns or clusters of small holes or bumps." No crumpets for them, then.

Australia is wider than the moon. The moon sits at 3400km in diameter, while Australia’s diameter from east to west is almost 4000km.

'Mellifluous' is a sound that is pleasingly smooth and musical to hear.

The Spice Girls were originally a band called Touch. "When we first started [with the name Touch], we were pretty bland," Mel C told The Guardian in 2018. "We felt like we had to fit into a mould."

Human teeth are the only part of the body that cannot heal themselves. Teeth are coated in enamel which is not a living tissue.

It's illegal to own just one guinea pig in Switzerland. It's considered animal abuse because they're social beings and get lonely.

The Ancient Romans used to drop a piece of toast into their wine for good health - hence why we 'raise a toast'.

The heart of a shrimp is located in its head. They also have an open circulatory system, which means they have no arteries and their organs float directly in blood.

Amy Poehler was only seven years older than Rachel McAdams when she took on the role of "cool mom" in Mean Girls. Rachel was 25 as Regina George - Amy was 32 as her mum.

People are more creative in the shower. When we take a warm shower, we experience an increased dopamine flow that makes us more creative.

Baby rabbits are called kits. Cute!

The unicorn is the national animal of Scotland. It was apparently chosen because of its connection with dominance and chivalry as well as purity and innocence in Celtic mythology.

The first airplane flew on December 17, 1903. Wilbur and Orville Wright made four brief flights at Kitty Hawk, North Carolina, with their first powered aircraft, aka the first airplane.

Venus is the only planet to spin clockwise. It travels around the sun once every 225 Earth days but it rotates clockwise once every 243 days.

Nutmeg is a hallucinogen. The spice contains myristicin, a natural compound that has mind-altering effects if ingested in large doses.

A 73-year-old bottle of French Burgundy became the most expensive bottle of wine ever sold at auction in 2018, going for $558,000 (approx £439,300). The bottle of 1945 Romanee-Conti sold at Sotheby for more than 17 times its original estimate of $32,000.

Competitive art used to be an Olympic sport. Between 1912 and 1948, the international sporting events awarded medals for music, painting, sculpture and architecture. Shame it didn't catch on, the famous pottery scene in Ghost could have won an Olympic medal as well as an Academy Award for the best screenplay.

A chef's hat has 100 pleats. Apparently, it's meant to represent the 100 ways you can cook an egg. Wonder if Gordon Ramsay knows that.

In 2014, there was a Tinder match in Antarctica. Two research scientists matched on the global dating app in the most remote part of the world - a man working at the United States Antarctic McMurdo Station and a woman camping a 45-minute helicopter ride away. What are the chances?!

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