★So far, two diseases have successfully been eradicated: smallpox and rinderpest.★Your stomach gets a new lining every 3 to 4 days, otherwise it would digest itself.★The French language has 13 different words for 'kiss'.★The Mona Lisa has no eyebrows or eyelashes.★A 'jiffy' is one trillionth of a second in physics.★Butterflies taste with their feet.★Bananas are curved because they grow towards the sun.★The first item ever sold on eBay was a broken laser pointer.★Dolphins sleep with one eye open.★Cows have regional accents, they moo differently in different areas.★Ostriches can run faster than horses.★If you lift a kangaroo's tail off the ground it can't hop.★The inventor of the Pringles can is buried in one.★There are more possible iterations of a game of chess than atoms in the observable universe.★The longest recorded flight of a chicken lasted 13 seconds.★Vincent van Gogh only sold one painting during his lifetime.★The average person spends six months of their life waiting for red lights to turn green.★A snail can have up to 25,000 teeth on its tongue.★Pteronophobia is the fear of being tickled by feathers.★Starfish can regenerate their lost limbs.★The smell of rain has a name: petrichor.★Wombat poop is cube-shaped.★There are more than 1,000 chemicals in a cup of coffee.★Elephants are the only mammals that can't jump.★Octopuses can taste with their arms.★Sharks existed on Earth before trees did.★Pigeons can recognize themselves in a mirror.★Goldfish can recognize human faces.★The longest hiccuping spree lasted 68 years.★Humans share 60% of their DNA with bananas.★A group of flamingos is called a 'flamboyance'.★There are more stars in the universe than grains of sand on every beach on Earth.★A lion's roar can be heard from up to 5 miles away.★A rhinoceros' horn is made of keratin, the same stuff as hair.★The Statue of Liberty was originally intended to be a lighthouse.★The shortest commercial flight in the world lasts just 57 seconds.★Bubble wrap was originally invented as wallpaper.★The fear of long words is ironically called hippopotomonstrosesquippedaliophobia.★A 'moment' was medieval unit of time equal to 90 seconds.★It is physically impossible to hum while holding your nose.★Cotton candy was co-invented by a dentist.★There are only two countries in the world whose names start with 'The': The Gambia and The Bahamas.★The smell of freshly cut grass is actually a plant distress signal.★Hippos can't actually swim, they walk along the riverbed.★There's a species of jellyfish that is immortal.★Sloths only poop about once a week.★A shrimp's heart is located in its head.★Avocados are toxic to most animals except humans.★7% of American adults believe that chocolate milk comes from brown cows.★Cleopatra lived closer in time to the Moon landing than to the building of the Great Pyramid.★Dragonflies have been around for about 300 million years.★Ketchup was once sold as medicine in the 1830s.★A group of jellyfish is called a smack.★The microwave oven was invented by accident when a researcher noticed a chocolate bar melted in his pocket.★A group of owls is called a parliament.★Antarctica is the only continent without native reptiles or snakes.★Horses physically cannot vomit.★Tigers have striped skin, not just striped fur.★Bees can recognize individual human faces.★A hippo's sweat is pink.★The average person walks the equivalent of three times around the world in a lifetime.★A snail can sleep for three years straight.★More than half of all people alive today have never made a phone call.★Sloths can hold their breath longer than dolphins can.★The first oranges weren't orange, they were green.★A group of frogs is called an army.★An octopus has nine brains.★Saturn would float if you could find an ocean big enough.★A newborn kangaroo is about the size of a jellybean.★In Switzerland it is illegal to own just one guinea pig.★A mosquito has 47 teeth.★A blue whale's tongue can weigh as much as an elephant.★The world's oldest known recipe is for beer.★Dolphins have names for each other.★The Eiffel Tower can grow up to 6 inches taller during summer.★The moon has moonquakes.★A hummingbird's heart can beat up to 1,260 times per minute.★Humans are the only animals that blush.★Polar bears have black skin under their white fur.★A flock of crows is known as a murder.★Bananas are berries, but strawberries are not.★A group of pandas is called an embarrassment.★A day on Mercury lasts 59 Earth days.★Nintendo was founded in 1889 as a playing card company.★A group of crows mobbing a predator is literally called a 'murder patrol'.★29th May is officially Put a Pillow on Your Fridge Day.★Banging your head against a wall for one hour burns 150 calories.★Hot water freezes faster than cold water. This is called the Mpemba effect.★Honey never spoils. Archaeologists found 3000-year-old honey in Egyptian tombs that was still edible.★Your tongue print is as unique as your fingerprint.★Koalas have fingerprints nearly identical to humans.★A blue whale's heart is roughly the size of a small car.★Peanuts aren't nuts, they are legumes.★Most 'silver' spoons are actually made of stainless steel.★Pigs can't look up at the sky without rolling over.★The Hawaiian alphabet has only 13 letters.★We have mapped more of Mars than of our own ocean floor.★Barbie's full name is Barbara Millicent Roberts.★Your nose can remember 50,000 different scents.★It takes about eight minutes for sunlight to reach Earth.★There is a village in Norway called 'Hell' that freezes over every winter.★Pineapples take about two years to grow.★The Great Wall of China is not visible from space with the naked eye.★Google processes more than 8.5 billion searches every single day.★The dot over the letter 'i' is called a tittle.★Rats laugh when tickled.★The shortest war in history lasted 38 to 45 minutes between Britain and Zanzibar.★A group of ferrets is called a business.★The 'new car smell' is made of dozens of chemicals off-gassing from the interior.★A bolt of lightning is five times hotter than the surface of the sun.★Snakes can help predict earthquakes.★A newborn panda is smaller than a mouse.★The human brain uses about 20% of the body's total energy.★Sea cucumbers breathe through their butts.★Cats can't taste sweetness.★Crows can recognize human faces and hold grudges for years.★Ancient Egyptians slept on stone pillows.★A day on Venus is longer than a year on Venus.★Cherophobia is an irrational fear of fun or happiness.★The oldest 'your mom' joke was discovered on a 3,500 year old Babylonian tablet.★Octopuses have three hearts and blue blood.★Humans blink about 15 to 20 times per minute.★A group of porcupines is called a prickle.★A crocodile can't stick its tongue out.★Cashews grow on the outside of a fruit, not inside a shell.★Cows have best friends and get stressed when separated.★Scotland's national animal is the unicorn.★A day on Jupiter lasts only about 10 hours.★A cloud can weigh more than a million pounds.★A jiffy is an actual unit of time: 1/100th of a second.★Voice actors for Mickey and Minnie Mouse got married in real life.★The first computer mouse was made of wood.★Chewing gum while you chop onions helps keep you from crying.★Sea otters hold hands while sleeping so they don't drift apart.★The Dutch were once the tallest people in the world.★You can hear a blue whale's heartbeat from more than two miles away.

★So far, two diseases have successfully been eradicated: smallpox and rinderpest.★Your stomach gets a new lining every 3 to 4 days, otherwise it would digest itself.★The French language has 13 different words for 'kiss'.★The Mona Lisa has no eyebrows or eyelashes.★A 'jiffy' is one trillionth of a second in physics.★Butterflies taste with their feet.★Bananas are curved because they grow towards the sun.★The first item ever sold on eBay was a broken laser pointer.★Dolphins sleep with one eye open.★Cows have regional accents, they moo differently in different areas.★Ostriches can run faster than horses.★If you lift a kangaroo's tail off the ground it can't hop.★The inventor of the Pringles can is buried in one.★There are more possible iterations of a game of chess than atoms in the observable universe.★The longest recorded flight of a chicken lasted 13 seconds.★Vincent van Gogh only sold one painting during his lifetime.★The average person spends six months of their life waiting for red lights to turn green.★A snail can have up to 25,000 teeth on its tongue.★Pteronophobia is the fear of being tickled by feathers.★Starfish can regenerate their lost limbs.★The smell of rain has a name: petrichor.★Wombat poop is cube-shaped.★There are more than 1,000 chemicals in a cup of coffee.★Elephants are the only mammals that can't jump.★Octopuses can taste with their arms.★Sharks existed on Earth before trees did.★Pigeons can recognize themselves in a mirror.★Goldfish can recognize human faces.★The longest hiccuping spree lasted 68 years.★Humans share 60% of their DNA with bananas.★A group of flamingos is called a 'flamboyance'.★There are more stars in the universe than grains of sand on every beach on Earth.★A lion's roar can be heard from up to 5 miles away.★A rhinoceros' horn is made of keratin, the same stuff as hair.★The Statue of Liberty was originally intended to be a lighthouse.★The shortest commercial flight in the world lasts just 57 seconds.★Bubble wrap was originally invented as wallpaper.★The fear of long words is ironically called hippopotomonstrosesquippedaliophobia.★A 'moment' was medieval unit of time equal to 90 seconds.★It is physically impossible to hum while holding your nose.★Cotton candy was co-invented by a dentist.★There are only two countries in the world whose names start with 'The': The Gambia and The Bahamas.★The smell of freshly cut grass is actually a plant distress signal.★Hippos can't actually swim, they walk along the riverbed.★There's a species of jellyfish that is immortal.★Sloths only poop about once a week.★A shrimp's heart is located in its head.★Avocados are toxic to most animals except humans.★7% of American adults believe that chocolate milk comes from brown cows.★Cleopatra lived closer in time to the Moon landing than to the building of the Great Pyramid.★Dragonflies have been around for about 300 million years.★Ketchup was once sold as medicine in the 1830s.★A group of jellyfish is called a smack.★The microwave oven was invented by accident when a researcher noticed a chocolate bar melted in his pocket.★A group of owls is called a parliament.★Antarctica is the only continent without native reptiles or snakes.★Horses physically cannot vomit.★Tigers have striped skin, not just striped fur.★Bees can recognize individual human faces.★A hippo's sweat is pink.★The average person walks the equivalent of three times around the world in a lifetime.★A snail can sleep for three years straight.★More than half of all people alive today have never made a phone call.★Sloths can hold their breath longer than dolphins can.★The first oranges weren't orange, they were green.★A group of frogs is called an army.★An octopus has nine brains.★Saturn would float if you could find an ocean big enough.★A newborn kangaroo is about the size of a jellybean.★In Switzerland it is illegal to own just one guinea pig.★A mosquito has 47 teeth.★A blue whale's tongue can weigh as much as an elephant.★The world's oldest known recipe is for beer.★Dolphins have names for each other.★The Eiffel Tower can grow up to 6 inches taller during summer.★The moon has moonquakes.★A hummingbird's heart can beat up to 1,260 times per minute.★Humans are the only animals that blush.★Polar bears have black skin under their white fur.★A flock of crows is known as a murder.★Bananas are berries, but strawberries are not.★A group of pandas is called an embarrassment.★A day on Mercury lasts 59 Earth days.★Nintendo was founded in 1889 as a playing card company.★A group of crows mobbing a predator is literally called a 'murder patrol'.★29th May is officially Put a Pillow on Your Fridge Day.★Banging your head against a wall for one hour burns 150 calories.★Hot water freezes faster than cold water. This is called the Mpemba effect.★Honey never spoils. Archaeologists found 3000-year-old honey in Egyptian tombs that was still edible.★Your tongue print is as unique as your fingerprint.★Koalas have fingerprints nearly identical to humans.★A blue whale's heart is roughly the size of a small car.★Peanuts aren't nuts, they are legumes.★Most 'silver' spoons are actually made of stainless steel.★Pigs can't look up at the sky without rolling over.★The Hawaiian alphabet has only 13 letters.★We have mapped more of Mars than of our own ocean floor.★Barbie's full name is Barbara Millicent Roberts.★Your nose can remember 50,000 different scents.★It takes about eight minutes for sunlight to reach Earth.★There is a village in Norway called 'Hell' that freezes over every winter.★Pineapples take about two years to grow.★The Great Wall of China is not visible from space with the naked eye.★Google processes more than 8.5 billion searches every single day.★The dot over the letter 'i' is called a tittle.★Rats laugh when tickled.★The shortest war in history lasted 38 to 45 minutes between Britain and Zanzibar.★A group of ferrets is called a business.★The 'new car smell' is made of dozens of chemicals off-gassing from the interior.★A bolt of lightning is five times hotter than the surface of the sun.★Snakes can help predict earthquakes.★A newborn panda is smaller than a mouse.★The human brain uses about 20% of the body's total energy.★Sea cucumbers breathe through their butts.★Cats can't taste sweetness.★Crows can recognize human faces and hold grudges for years.★Ancient Egyptians slept on stone pillows.★A day on Venus is longer than a year on Venus.★Cherophobia is an irrational fear of fun or happiness.★The oldest 'your mom' joke was discovered on a 3,500 year old Babylonian tablet.★Octopuses have three hearts and blue blood.★Humans blink about 15 to 20 times per minute.★A group of porcupines is called a prickle.★A crocodile can't stick its tongue out.★Cashews grow on the outside of a fruit, not inside a shell.★Cows have best friends and get stressed when separated.★Scotland's national animal is the unicorn.★A day on Jupiter lasts only about 10 hours.★A cloud can weigh more than a million pounds.★A jiffy is an actual unit of time: 1/100th of a second.★Voice actors for Mickey and Minnie Mouse got married in real life.★The first computer mouse was made of wood.★Chewing gum while you chop onions helps keep you from crying.★Sea otters hold hands while sleeping so they don't drift apart.★The Dutch were once the tallest people in the world.★You can hear a blue whale's heartbeat from more than two miles away.

Human manual

Score

0/5

Chapter

1/5

How to play Human manual

An alien research team wrote a field manual about humans, and their editors need help. Every day you get five chapters. Each chapter lists four deadpan observations about human behaviour: sleeping, queueing, blushing, keeping a bag full of other bags. Three of the four lines are funny but factually true. One is factually wrong. Tap the wrong line, or press 1 to 4 on desktop. After each pick you get the real science behind the chapter. Find all five errors to earn the rank of chief human researcher.

Tips

The true lines sound absurd on purpose, absurd does not mean false
Lines that sound too neat or too official are often the fake
Classic school myths (blue blood, tongue maps) love hiding as the wrong line
Read the explanations, they make tomorrow's chapters easier

About Human manual

The joke behind Human manual is that humans are genuinely weird when described from the outside. We voluntarily go offline a third of our lives, pay extra for food that hurts, and grow bumps on our skin to fluff up fur we lost ages ago. All true. The game hides one made-up line between three real ones and dares you to tell them apart, which turns out to be surprisingly hard because reality keeps out-weirding fiction. Along the way you pick up actual trivia: why blood is never blue, where the 10,000 steps myth came from, and what your appendix has been quietly doing all along. Five chapters a day, new errors every morning.

More trivia games

Who said what?: A quote, four suspects, sixty seconds. Guess who said it.
Country guess: Guess today's mystery country. Each wrong guess tells you how far away you were and in which direction. Six tries.
Higher or lower: Is the next one higher or lower? Guess and build your streak across cities, animals, countries and more.
Daily trivia: Ten questions per day across geography, science, history and pop culture. Can you score 10/10?
Fake or fact: Five quick rounds per day. Read two statements and spot the false one.
One minute detective: Read the clues, pick the culprit. A new mystery every day or endless random cases.

Browse the full arcade →

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