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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
Your brain processes negative experiences faster than positive ones as an evolutionary survival mechanism.
The honeybadger has been observed opening car doors, unscrewing bolts, and solving complex escape problems in captivity.
A cockroach can survive for up to a month without food but only about a week without water.
The African elephant's pregnancy lasts nearly 22 months, the longest gestation period of any land animal.
Dolphins have been observed using dead pufferfish to get high — they gently chew on the fish to release small amounts of toxin.
The hairy frog, also called the horror frog, can break its own bones to produce claws that puncture through its skin.
Male seahorses give birth to live young — the female deposits her eggs into the male's brood pouch.
The blanket octopus is immune to the venom of the Portuguese man o' war and even uses its tentacles as weapons.
A woodpecker's skull has spongy bone structures that absorb the impact of pecking at 20 times per second.
The kakapo is the world's only flightless parrot and one of the longest-living birds, with a lifespan of up to 100 years.
Leafcutter ants do not eat the leaves they collect — they use them to cultivate a fungus garden that serves as their food source.
Electric rays can generate electric shocks of up to 220 volts to stun prey and defend against predators.
The proboscis monkey has an unusually large nose that amplifies its vocalizations to attract mates and intimidate rivals.
Some species of sea cucumber can eject their internal organs as a defense mechanism and regenerate them within weeks.
Archerfish can spit jets of water at insects on overhanging branches with remarkable accuracy from up to 5 feet away.
The giant tortoise can go an entire year without eating or drinking.
Honeybees can be trained to detect explosives because they can identify specific chemical compounds in the air.
The stoat performs a hypnotic dance to confuse and mesmerize rabbits before attacking.
Certain species of deep-sea anglerfish have males that permanently fuse to the much larger females, sharing a circulatory system.
The mudskipper is a fish that can walk on land, climb trees, and breathe through its skin.
Snow leopards cannot roar — they communicate through chuffing, hissing, and mewing sounds.
A single termite mound can contain millions of termites and last for centuries.
The narwhal's tusk is actually an elongated tooth that can grow up to 10 feet long and contains millions of nerve endings.
Army ants can form living bridges by linking their bodies together, allowing the rest of the colony to cross gaps.
The sperm whale has the largest brain of any animal, weighing about 17 pounds.
Dolphins call each other by unique names — each dolphin develops its own distinctive signature whistle.
The box jellyfish has 64 anuses and 24 eyes, four of which can form true images.
Naked mole rats are virtually immune to cancer and can survive up to 18 minutes without oxygen.
The coconut crab is the largest land-living arthropod, with a leg span of up to 3 feet.
Cuttlefish have W-shaped pupils that allow them to see behind themselves without turning their heads.
The wandering albatross has the largest wingspan of any living bird, reaching up to 11.5 feet.
Male bowerbirds build elaborate decorated structures to attract mates, sometimes spending weeks arranging colorful objects.
A flea can jump up to 150 times its own body length — the human equivalent of jumping over a 75-story building.
The harpy eagle has talons larger than a grizzly bear's claws and can exert over 500 pounds of pressure per square inch.
African grey parrots have been shown to understand the concept of zero, a cognitive ability once thought unique to primates.
The immortal jellyfish, Turritopsis dohrnii, can revert to its polyp stage after reaching maturity, essentially restarting its life cycle.
The lightest known exoplanet, PSR B1257+12 A, has a mass only twice that of the Moon.
Titan is the only moon in the solar system with a dense atmosphere, which is mostly nitrogen like Earth's.
The total number of stars visible to the naked eye from Earth is only about 9,000, split between the two hemispheres.
Rogue black holes wander through galaxies at millions of miles per hour after being ejected from their original positions.
The Perseverance rover on Mars carries a small helicopter called Ingenuity, which made the first powered flight on another planet.
Gravitational lensing allows astronomers to see galaxies behind other galaxies by bending light around massive objects.
The fastest spinning pulsar ever discovered rotates 716 times per second.
Dark energy makes up about 68% of the universe and is responsible for the accelerating expansion of space.
The temperature difference between the sunny and shady sides of the Moon can exceed 500 degrees Fahrenheit.
A solar sail spacecraft uses radiation pressure from sunlight to propel itself without any fuel.
Ceres, the largest object in the asteroid belt, contains about one-third of the belt's total mass.
The diameter of the observable universe is about 93 billion light-years, even though it is only 13.8 billion years old.
The cosmic microwave background radiation has a temperature of about 2.7 Kelvin, or minus 454.8 degrees Fahrenheit.
Hypervelocity stars are traveling so fast through space that they will eventually escape the gravitational pull of the Milky Way entirely.