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11,491 facts. Click any fact to see its full page.
All 11,491
📜 History 1,991
🔬 Science 1,964
🐾 Animals 1,525
🚀 Space 977
🧠 Psychology 893
🌿 Nature 759
💻 Technology 735
🌍 Geography 599
🎭 Culture 581
🫀 Human Body 572
🌊 Ocean 373
💬 Language 245
🍕 Food 199
✨ General 68
✨ Dinosaur 10
The appendages of a mantis shrimp move so fast they can break aquarium glass.
Sloths move so slowly that algae grows in their fur, providing camouflage and a snack for moths.
Narwhal tusks are actually spiral teeth that can grow up to 10 feet long and are filled with nerve endings.
The blue-ringed octopus is small enough to fit in a palm but carries enough venom to kill 26 adults.
Ants have been farming fungi for over 60 million years, long before humans invented agriculture.
The boto (Amazon river dolphin) can turn its head 180 degrees due to unfused neck vertebrae.
African wild dogs have a voting system — they sneeze to cast votes on when to go hunting.
The archerfish shoots jets of water to knock insects off overhanging branches with remarkable accuracy.
Honeybees make decisions collectively through a democratic waggle dance competition.
The giant Pacific octopus has three hearts, nine brains (one central, one per arm), and blue blood.
Jellyfish have existed for over 500 million years, predating dinosaurs, trees, and sharks.
Hummingbirds are the only birds that can fly backwards.
The duck-billed platypus detects electric fields from prey using electroreceptors in its bill.
Elephants communicate using infrasound frequencies below human hearing, detectable over 6 miles away.
Pistol shrimp colonies can create so much noise they interfere with submarine sonar.
The lyrebird can mimic chainsaws, camera shutters, car alarms, and other birds with extraordinary accuracy.
Wolverines have been documented traveling over 500 miles in a single season.
The Greenland shark can live over 400 years and doesn't reach sexual maturity until around age 150.
A snail can sleep for up to three years during drought conditions.
Clownfish are all born male, and the dominant fish in a group can change to female when needed.
Bats are the only mammals capable of true sustained flight.
The mimic octopus can impersonate over 15 different species including lionfish, flatfish, and sea snakes.
Crows hold grudges and have been observed sliding down snowy rooftops repeatedly, apparently just for fun.
A group of flamingos is called a flamboyance, and their pink color comes entirely from the carotenoids in their diet.
Dragonflies have a hunting success rate of around 95%, making them the most effective predators on Earth.
The Venus flytrap can count — it only snaps shut after a prey item touches its trigger hairs twice within 20 seconds.
Wolves can smell prey up to 1.75 miles away and track it across hundreds of miles.
The bombardier beetle sprays boiling hot caustic chemicals from its abdomen as a defense mechanism.
Sea otters hold hands while sleeping so they don't drift apart — this is called a raft.
Wombats are the only animals that produce cube-shaped feces, used to mark territory without rolling away.
The blue whale's heart is so large a small child could crawl through its aorta.
Migratory birds navigate using Earth's magnetic field, detecting it through cryptochrome proteins in their eyes.
A single colony of leafcutter ants can strip an entire tree of leaves overnight.
Cuttlefish have W-shaped pupils and can see polarized light, but are colorblind.
The immortal jellyfish (Turritopsis dohrnii) can revert to its juvenile state after reaching maturity, theoretically living forever.
Elephants are one of the few animals that can recognize themselves in a mirror.
The pistol shrimp snaps its claw so fast it creates a cavitation bubble that briefly reaches the temperature of the sun's surface.
Axolotls can regenerate not just limbs, but parts of their heart and brain.
A group of owls is called a parliament.
Tardigrades can survive in the vacuum of space, extreme radiation, and temperatures from near absolute zero to 150°C.
The mantis shrimp can punch with the force of a bullet and sees 16 types of color receptors compared to humans' 3.
The loudest animal relative to its body size is the water boatman — a tiny aquatic insect that produces sound by rubbing its genitals against its abdomen.
Penguins were called 'strange geese' by early European explorers who had never seen them before.
A group of flamingos is also sometimes called a colony or a stand when they are not flying.
Astronauts grow up to 2 inches taller in space because the spine decompresses without gravity.
The inventor of basketball, James Naismith, is one of the few coaches in Kansas basketball history with a losing record.
Fortune cookies are not Chinese — they were invented in California in the early 20th century.
Antarctica is the only continent with no native population and no permanent residents except researchers.
Raindrops are not actually teardrop-shaped — they are spherical when small and flatten into a hamburger bun shape as they grow.
The population of ancient Rome at its peak was about 1 million — it didn't reach that size again until the 19th century.