Factnight
Uncover the World’s Most Fascinating Facts, All in One Place!
Explore surprising, fun, and intriguing facts across science, history, tech, and beyond!
About FactNight
Why FactNight?

“At FactNight, we believe every fact has a story, and every story deserves to be told. Dive into a world of knowledge, curiosity, and wonder as we explore fun, interesting, and sometimes strange facts across a wide array of topics.”
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Fact of the Day
“Bananas Are Berries, but Strawberries Aren’t!”
- Despite their names, bananas are classified as berries, while strawberries are not! True berries are derived from a single flower with one ovary and typically contain multiple seeds.
“The Eiffel Tower Can Grow Taller!”
- The Eiffel Tower can grow up to 6 inches taller during hot days. Heat makes the metal expand, giving this iconic landmark a little extra height in summer!
“Octopuses Have Three Hearts!”
- An octopus has not one, but three hearts—two pump blood to its gills, while the third pumps blood to the rest of its body.
“Jellyfish Are 95% Water!”
- Jellyfish, some of the oldest creatures in the world, are made up of 95% water, allowing them to float effortlessly in the ocean.
“A Day on Venus Is Longer Than a Year!”
- On Venus, a single day (one rotation on its axis) takes 243 Earth days, while it takes only 225 Earth days to complete its orbit around the sun.
“Penguins Propose With Pebbles!”
- Male penguins gift pebbles to female penguins as a form of proposal. If the female accepts, they become a couple and use the pebble to build their nest.
“Tomatoes Were Once Considered Poisonous!”
- In the 1700s, Europeans feared tomatoes, calling them “poison apples.” The acidity in tomatoes would leach lead from pewter plates, causing lead poisoning in wealthy diners.
“A Group of Flamingos Is Called a ‘Flamboyance’!”
- Flamingos are known for their stunning pink feathers, and when they gather, they’re called a “flamboyance”—a fitting name for these vibrant birds.
“Sloths Only Poop Once a Week!”
- Sloths descend from trees only once a week to relieve themselves, making them one of the most energy-efficient animals.
“Sharks Are Older Than Trees!”
- Sharks have existed for around 400 million years, while the first trees appeared around 350 million years ago.
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