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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 whale shark is the world's largest fish, growing up to 12 meters and filtering tons of water daily.
Vampire bats are the only mammals that feed exclusively on blood, and they share meals with roost members in need.
The black mamba snake can move at speeds of up to 20 km/h on land.
Ravens can solve multi-step puzzles and plan for future events — a cognitive ability once thought unique to humans and apes.
Crocodiles have the strongest bite of any living animal, measured at over 3,700 psi.
The fennec fox has ears up to 15 cm long to radiate heat and detect prey moving underground.
Box jellyfish have 24 eyes grouped into four clusters and can navigate around obstacles.
The olm, a cave-dwelling salamander, can live without food for up to 10 years.
A group of jellyfish is called a 'smack.'
The aye-aye, a lemur from Madagascar, has a specialized long middle finger for extracting grubs from wood.
Most dinosaurs were likely warm-blooded, more like modern birds than cold-blooded reptiles.
The sailfish is the fastest fish in the ocean, capable of speeds up to 110 km/h.
Sea cucumbers expel their internal organs when threatened and later regenerate them.
The migratory locust can form swarms of billions covering hundreds of square miles.
Tiger sharks have been found with license plates, tires, and even a suit of armor in their stomachs.
The archerfish can accurately compensate for light refraction when aiming its water jet at insects above the surface.
Hummingbirds have the highest metabolism of any warm-blooded animal and must eat every 10–15 minutes.
The world's largest living organism by area is a fungal mat (Armillaria) in Oregon covering over 2,385 acres.
Worker bees are all female; male bees (drones) have no stinger and exist solely to mate with the queen.
Pandas have a 'false thumb' — an enlarged radial sesamoid bone that acts like a thumb for gripping bamboo.
The Goliath birdeater spider has a leg span of up to 30 cm and can be heard walking across a room.
Dolphins sleep with one eye open by resting half their brain at a time, a process called unihemispheric sleep.
The glass frog of Central and South America has transparent skin through which its internal organs are visible.
A shrimp's heart is located in its head.
Elephants mourn their dead and have been observed returning to the bones of deceased relatives.
The great white shark can detect one drop of blood in 25 gallons of water and sense it from 3 miles away.
Sea stars (starfish) have no brain or blood — they use seawater to pump nutrients through their bodies.
Bats contribute over $3 billion worth of pest control services to US agriculture annually.
The bombardier beetle mixes chemicals in a special chamber to create an explosive spray at 100°C.
Koalas have fingerprints nearly identical to human fingerprints, indistinguishable even under a microscope.
The peacock mantis shrimp has the most complex eyes in the animal kingdom, with 16 photoreceptor types.
Spiders taste and smell with specialized receptors on their legs.
Ants can carry 10 to 50 times their own body weight, depending on the species.
The platypus is one of only five mammal species that lay eggs instead of giving birth to live young.
A group of ravens is called an 'unkindness' or a 'conspiracy.'
Monarch butterflies migrate up to 3,000 miles from Canada to central Mexico each year.
The blue whale's tongue alone can weigh as much as an elephant.
Crows have been observed crafting tools from wire and sticks to retrieve food from containers.
The electric eel can generate up to 600 volts — enough to stun a horse.
Flamingos are not born pink — they are gray and white at birth, gaining their color from carotenoid pigments in their food.
The axolotl's ability to regenerate limbs is being studied to understand how the same capability might be triggered in mammals.
Diana Nyad swam from Cuba to Florida in 2013 at age 64 — over 177 km in 53 hours without a shark cage.
High-altitude mountaineers can lose up to a pound of weight per day on extreme climbs due to calorie burn and dehydration.
The international governing body for chess, FIDE, was founded in 1924 and recognizes titles including Grandmaster.
A regulation NFL football must be inflated to between 12.5 and 13.5 psi.
The Great Wall of China has been attempted as a marathon route — participants run over 3,700 steps.
In sumo wrestling, the ring (dohyo) is considered sacred and purified with salt before each tournament.
Polo is one of the oldest team sports in the world, originating in Persia around 6th century BC.
Jim Thorpe won the pentathlon and decathlon at the 1912 Olympics — King Gustav V of Sweden called him 'the world's greatest athlete.'
Archery was the first sport to be included in the Olympics after its original ancient form disappeared from the games.