Sea otters hold hands while sleeping to prevent drifting apart.

The world's oldest wooden wheel has been around for more than 5,000 years

The first person processed at Ellis Island was a 15-year-old girl from Ireland

Thomas Edison is the reason you love cat videos

Snails have teeth, between 1,000 and 12,000 teeth, to be precise.

Your signature could reveal personality traits.

The Eiffel Tower can grow up to 6 inches taller during the summer due to thermal expansion.

Wally Amos is responsible for making more than just cookies famous

Bananas are classified as berries, but strawberries are not.

Pregnancy tests date back to 1350 B.C.E.

170-year-old bottles of champagne were found at the bottom of the Baltic Sea

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 world's largest hamburger was made in Wisconsin in 2018. It was over 1,000 pounds and took over 20 people to eat.

Hawaii Moves Towards Japan

Harry Styles has four nipples

Google images was literally created after Jennifer Lopez wore that infamous dress at the 2000 Grammys

The world's largest airplane is the Antonov An-225 Mriya. It is 275 feet long and has a wingspan of 290 feet.

The Jeep was originally designed for military use during World War II.

The world's largest spider is the Goliath birdeater. It can grow up to 12 inches long and have a legspan of over 10 inches.

Lemons float, but limes sink

The word ?fizzle? started as a type of fart