108 Fun Facts About Snake

The common adder, the world's northernmost snake, crosses the Arctic Circle in which region?

Scandinavia is where the common adder ranges beyond the Arctic Circle, the only snake found that far north; it copes by hibernating through the long winter and basking in the sun to warm up.

What does a snake do with its forked tongue?

Collect scent particles: that is the job of the forked tongue, which flicks out, picks up chemical traces from air or ground, and delivers them to the vomeronasal organ in the roof of the mouth.

The vomeronasal organ in the roof of a snake's mouth is commonly known by which anatomist's name?

Jacobson's organ honours the Danish anatomist Ludwig Jacobson, who published on it in the early 1800s, yet his find was a rediscovery: the Dutchman Frederik Ruysch had described it generations earlier.

Instead of movable eyelids, what covers a snake's eyes?

A transparent scale called the brille or spectacle covers each eye; it is shed with the rest of the skin, which is why a snake's eyes turn cloudy before a molt.

How does a snake shed its skin?

In one complete piece, ideally: the old layer peels back from the snout and comes off like a sock turned inside out, and a healthy adult may shed several times a year.

Roughly how many snake species were known by 2026?

About 4,000 species are known, and the list grows by dozens a year as new snakes are described; despite their fearsome reputation, most of them are non-venomous.

Which species is the world's longest venomous snake?

King cobra: when cornered it can lift the front third of its body off the ground, high enough to look a standing adult in the eye, and still move forward to strike.

The world's longest venomous snake is the only one known to do what when breeding?

Build an above-ground nest is this snake's unique habit: the female rakes leaf litter into a mound, lays her clutch inside and guards it through incubation, unlike most snakes, which abandon theirs.

The black mamba's body is olive or grey, so which part gives it its name?

The inside of its mouth is inky black, and the snake gapes to show it as a threat display; it is also Africa's longest venomous snake.

Which shy Australian snake is considered the most venomous in the world by the LD50 test in mice?

Inland taipan venom tops the mouse LD50 scale, with one bite estimated to hold enough to kill a hundred adults, yet bites are very rare because it lives in remote outback and spends little time above ground.

What is the longest snake species alive today?

Reticulated python is the longest snake yet not the heaviest: it is so much slimmer than the bulkiest species that a shorter rival can weigh almost twice as much.

Which South American snake is the heaviest in the world?

Green anaconda bulk is carried by water: the snake is cumbersome on land but sleek and stealthy in the swamps and slow rivers where it spends most of its time, and females far outgrow males.

Blair Hedges, who named the tiny Barbados threadsnake in 2008, said it was about as wide as what?

A spaghetti noodle was his comparison; the snake is so small that a female produces just one offspring at a time, and it emerges already about half her size.

In which country's coal mine were the fossils of the giant snake Titanoboa discovered?

Colombia's Cerrejón coal mine yielded Titanoboa, some 13 metres long; its describers calculated that a cold-blooded snake so large needed a climate averaging at least 30 °C, hotter than tropical forests today.

Which of these island nations has no native land snakes?

New Zealand has no land snakes at all, although sea snakes and sea kraits occasionally drift into its northern waters; its native land reptiles are lizards and the tuatara.

Legend credits St Patrick, but what really kept snakes out of Ireland?

Rising seas after the Ice Age cut Ireland off before snakes spreading north through Britain could cross; the Roman writer Solinus noted that it had none in the third century, long before Patrick.

Ilha da Queimada Grande, an Atlantic island closed to the public, is home to thousands of which snakes?

Golden lancehead vipers live nowhere else; with no ground mammals to hunt they prey on migrating birds, and their venom is fast-acting and up to five times as potent as mainland relatives'.

The rattle on a rattlesnake's tail is made of what?

Hollow keratin segments, loosely interlocked, make up the rattle; a new segment is added each time the snake sheds, and the pieces click against each other when the tail vibrates.

Rattlesnakes are native only to which part of the world?

The Americas are the rattlesnake's only home, from southern Canada to central Argentina, and the snake became an emblem of the American Revolution, coiled on the Gadsden flag above 'Don't Tread on Me'.

What does the small pit in front of each eye on pit vipers such as rattlesnakes sense?

Infrared heat is what the loreal pits detect, well enough that a blindfolded rattlesnake can still strike warm prey accurately in total darkness.

Which body part do snakes rest on the ground to pick up vibrations in stereo?

Their lower jaw, resting on the ground, carries vibrations to the inner ear; the two halves of the jaw move independently, so the snake can tell which side a vibration comes from.

Snake venom is a modified form of what?

Saliva is what venom evolved from: the glands behind each eye are modified salivary glands, and a snake can meter the dose, sometimes delivering a 'dry bite' with no venom at all.

Albert Calmette's 1890s antivenom, the first sold commercially, was produced by immunising which animals?

Horses were injected with cobra venom until they built up immunity, and serum drawn from their blood became Calmette's 'Sérum Antivenimeux', the first antivenom on sale.

Which snake family includes the cobras, mambas and coral snakes?

Elapidae snakes have front fangs that stay permanently erect, whereas a viper's sit on a rotating bone and fold away, which is what lets vipers carry far longer ones in the same small mouth.

In Greek myth, which hero beheaded Medusa, the Gorgon with snakes for hair?

Perseus, in the usual telling, watched Medusa's reflection in a polished shield lent by Athena, later turned his enemies to stone with the severed head, then gave it to the goddess for her aegis.

What is the ancient symbol of a snake eating its own tail called?

Ouroboros, from the Greek for 'tail-devouring', appears on a shrine in Tutankhamun's tomb, and the chemist August Kekulé said a daydream of a snake seizing its own tail showed him benzene's ring.

The two-snake caduceus, often mistaken for medicine's one-snake Rod of Asclepius, is the staff of which Greek god?

Hermes, herald of the gods and patron of merchants, carries the caduceus and has no link to healing; the confusion spread after the US Army Medical Corps adopted it as its insignia.

The rearing serpent worn on the crowns of Egyptian pharaohs is called what?

Uraeus is the emblem of the goddess Wadjet, protector of Lower Egypt; once the country was unified, the vulture of Upper Egypt's Nekhbet joined it on the crown to show rule over both lands.

In Norse myth, the world-encircling serpent that bites its own tail is which god's child?

Loki fathered Jörmungandr with the giantess Angrboða; Odin cast the serpent into the sea, where it grew until it circled the world, and at Ragnarök it and Thor are fated to kill each other.

The board game Snakes and Ladders originated in which country as a lesson about virtue and vice?

India is where the game began as Moksha Patam; when Milton Bradley brought it to America in 1943 as Chutes and Ladders, playground slides took the place of the snakes.

What is a 'dancing' cobra in a snake charmer's basket really responding to?

The movement of the instrument is what the cobra follows, swaying to track the pungi as a perceived threat; snakes cannot hear airborne music well enough to dance to it.

The Snake genre exploded after a version was preloaded on which company's mobile phones in 1998?

Nokia preloaded Snake on its 6110, programmed by Taneli Armanto, and because that handset could beam data to a second phone, two players could link up for a head-to-head game.

In Kipling's The Jungle Book, the python Kaa helps Baloo and Bagheera rescue Mowgli from which kidnappers?

The monkeys, Kipling's Bandar-log, had carried Mowgli off to a ruined city; Kaa entranced them with his hunger dance, so the snake Disney made a villain is a rescuer in the book.

Which actor starred in Snakes on a Plane (2006)?

Samuel L. Jackson played FBI agent Neville Flynn; its title made the film an internet phenomenon before release, and New Line ordered reshoots that worked in fans' ideas and pushed it to an R rating.

In Raiders of the Lost Ark's Well of Souls, what stood between Harrison Ford and the cobra?

A clear protective screen separated Ford from the cobra; a few hundred snakes had looked too sparse on set, so handlers across Europe supplied thousands more within days.

By popular tradition Cleopatra died from the bite of an asp, a name usually taken to mean which snake?

An Egyptian cobra is what 'asp' most likely meant in Ptolemaic Egypt, yet ancient writers also record a rival story: that Cleopatra used a poisoned ointment or hairpin instead.

The Burmese python has become a notorious invasive species in which US state?

Florida's Everglades pythons descend from escaped and released pets, and surveys have linked them to steep falls in raccoons, opossums and bobcats; marsh rabbits have all but vanished from the park.

The 'king' in kingsnake refers to what habit, one it shares with a much larger Asian namesake?

Eating other snakes is the habit: kingsnakes hunt rattlesnakes, copperheads and cottonmouths, and can shrug off the bites because they are immune to the venom of the vipers they live among.

The boa constrictor's everyday English name is, unusually, exactly the same as what?

Its scientific name is Boa constrictor too, just as Linnaeus wrote it in 1758; and the squeeze does not suffocate prey as long believed, since a 2015 study found it stops the blood flow.

Python regius, West Africa's royal python, has a better-known name describing what behaviour?

Curling into a ball when frightened, head tucked in the middle, gave the ball python its name; Nigeria's Igbo hold it sacred, and many communities give one killed by accident a coffin and a funeral.

North American hognose snakes are famous for what defensive trick?

Playing dead is the hognose's signature act: after hooding and hissing fails, it rolls onto its back, lets its tongue hang out and releases a foul musk to sell the performance.

Spitting cobras aim their venom at what part of an attacker?

The eyes and face are the target because that is where the venom works: it is harmless on intact skin but can blind an attacker if it reaches the eyes, and a cobra can spray it several metres.

Snakes of the genus Chrysopelea in Southeast Asia are known for what ability?

Gliding between trees is the trick: the snake launches from a branch, flattens its body by flaring its ribs into an aerofoil, and undulates in mid-air, which is why the group is called flying snakes.

African snakes of the genus Dasypeltis have adapted to eat only what?

Eggs, and nothing else, make up the diet: the egg-eating snakes swallow birds' eggs whole, crack them with bony projections of the spine, and regurgitate the shell.

The Afrikaans name of the boomslang, a rear-fanged African species, translates as what?

Tree snake is the literal meaning, from Afrikaans boom (tree) and slang (snake); the herpetologist Karl Schmidt died in 1957 after a bite from a juvenile he assumed could not deliver a fatal dose.

In the Chinese zodiac's twelve-year cycle, the Snake comes straight after which animal?

Dragon comes fifth and the Snake sixth; in the folk tale of the Great Race the Snake hid on a rival's hoof and startled it at the finish line to take sixth place.

Which locomotion, used by desert vipers, lifts sections of the body clear of loose sand?

Sidewinding lifts loops of the body clear so that the parts touching down never slide, leaving separate J-shaped tracks; that grip on loose ground is why mud-flat snakes in Southeast Asia use it too.

The tiny clawed spurs beside a python's vent are the last remnants of what?

Hind legs: each spur caps a leftover thigh bone from the limbs that snakes' ancestors walked on, and males still use them to grip and stroke females during courtship.

Snakebite, which kills tens of thousands of people a year, was added by the WHO in 2017 to its list of what?

Neglected tropical diseases gained snakebite envenoming in June 2017 after years of pressure on the WHO, which has since set a goal of halving snakebite deaths and disability by 2030.

The Sanskrit 'nāga', for the semi-divine serpents of Hindu and Buddhist lore, most often means which snake?

The Indian cobra is what nāga most often means, and its spread hood runs through the lore: in Buddhist tradition the serpent king Mucalinda sheltered the meditating Buddha from a storm beneath his hood.

Which biblical leader raised a bronze serpent on a pole to heal the snakebitten?

Moses made the bronze serpent in the Book of Numbers so that anyone bitten could look at it and live; Hezekiah later broke it up because people had begun burning incense to it.

Which long-legged African species is famous for killing snakes by stamping on them?

Secretary bird hunts on foot with its wings spread and kills with swift stamping kicks, so a snake that strikes back tends to get only a mouthful of feathers.

The fossil Tetrapodophis, hailed in 2015 as a four-legged snake, came from the limestone of which South American country?

Brazil's Crato Formation is where it is thought to have been dug, though the slab was described from a museum in Solnhofen, Germany; later studies place it among the dolichosaurs, long-bodied marine lizards.

Besides pit vipers, which group includes snakes with sensory pits along the lips?

Pythons and boas carry rows of labial pits along the lips, simpler than a pit viper's single deep pit on each side of the face; the sense evolved separately in the different groups.

Snakes have been found as high as 16,000 feet in which mountain range?

The Himalayas are home to a pit viper, Gloydius himalayanus, found at about 4,900 metres, a remarkable height for a cold-blooded animal that depends on its surroundings for warmth.

Copperheads and cottonmouths can switch from sexual reproduction to which asexual mode?

Parthenogenesis lets a female produce young with no father, most likely by fusing two products of the same cell division to start the embryo, with no sperm involved.

When a heavy python creeps forward in a dead-straight line, what is it lifting and pulling along the ground?

Its belly scales are lifted, set down ahead and pulled back in waves, a slow, near-silent crawl called rectilinear motion; the ribs, once thought to 'walk' the snake along, do not move at all.

An unusual population of Oregon garter snakes is effectively poisonous thanks to toxins from eating what?

Newts, specifically the rough-skinned newt, carry tetrodotoxin, and garter snakes that eat them store it in the liver and become toxic to predators; the Asian genus Rhabdophis does something similar with toad toxins.

Which country's flag shows a golden eagle perched on a prickly pear cactus while devouring a snake?

Mexico's emblem recalls the legend that the Aztecs were to found their city, Tenochtitlan, on the spot where they saw that eagle.

In The Little Prince, grown-ups mistake the narrator's drawing of a boa constrictor digesting an elephant for what?

A hat is all the adults ever see, so the boy makes a second drawing that shows the elephant inside the snake.

Boa constrictors kill prey not by suffocation, researchers found, but chiefly by cutting off what?

Blood flow halts under the squeeze, starving the heart and brain of oxygen, so prey passes out within seconds.

Which pop star danced with a live albino python draped over her shoulders at the 2001 MTV Video Music Awards?

Britney Spears was performing I'm a Slave 4 U, a routine that used a host of other live animals as well.

Which ancient general won a sea battle by hurling clay pots of venomous snakes onto enemy ships?

Hannibal was by then an exile commanding the fleet of King Prusias of Bithynia against Eumenes II of Pergamon.

August Kekulé said a daydream of a snake seizing its own tail revealed the ring structure of which molecule?

Benzene's six carbon atoms join in a closed loop, a structure the German chemist published in 1865 and later credited to that vision.

Which Founding Father published the 1754 cartoon Join, or Die, showing the colonies as a snake cut into pieces?

Benjamin Franklin ran it in his Pennsylvania Gazette, playing on a superstition that a severed snake revives if its pieces are rejoined before sunset.

A cobra spreads its famous hood by lifting and extending which long, flexible bones of the neck?

The ribs of the neck swing outward and stretch the loose skin over them, while the snake rears up the front third of its body.

The slow worm, a legless garden animal of Europe often mistaken for a snake, is actually what?

A lizard without legs, it can blink its movable eyelids, which no snake can do, and sever its own tail when a predator grabs hold.

In Rudyard Kipling's story Rikki-Tikki-Tavi, which small mammal defends a family's garden against two cobras?

A mongoose named for his chattering call, Rikki is half drowned by a storm and rescued by the family he goes on to protect.

Most snakes get by with one working example of which organ, the left one being tiny or absent?

The left lung shrank because a tubular body has room only for long, thin organs, which is also why the kidneys sit one in front of the other.

What is the scientific term for the periodic shedding of a snake's skin, also called sloughing?

Ecdysis announces itself in advance: just before a shed the skin dulls to grey and the eyes turn silvery.

What is the term for the winter dormancy of snakes and other reptiles, which stay awake but inactive?

Brumation is not true sleep, and snakes may pass it alone in burrows and rock piles or clumped together in large numbers.

Besides movable eyelids, which feature of most lizards do snakes lack on the sides of the head?

Ear openings are missing, yet snakes are not deaf: experiments show they react to low-pitched airborne sound as well as to vibration in the ground.

Which airway structure can a snake push out the side of its mouth to keep breathing while swallowing large prey?

The glottis sits just behind the tongue, and a hiss is simply air forced through it while it is partly closed.

The harmless scarlet kingsnake copies the bands of a venomous coral snake, an example of which kind of mimicry?

Batesian mimicry is a harmless animal's bluff, and tests show predators fall for the colour proportions even when the order of the rings is wrong.

Which family, home to garter snakes, rat snakes and kingsnakes, is the largest of all snake families?

Colubridae spans about 250 genera, and while most members are harmless to people, the venomous ones must chew on prey to work their venom in.

The tiny Brahminy blind snake has spread around the world mainly by stowing away in what?

Potted plants moved by the nursery trade carried it so far that it earned the nickname flowerpot snake.

Iran's spider-tailed horned viper waves a tail tip shaped like a spider to lure which prey within striking range?

Birds that eat insects swoop on the fake spider; the species was formally described only in 2006, after a 1968 specimen had been filed under a relative's name.

Which African bird of prey hunts on foot and kills snakes by stomping on them?

The secretarybird even carries the habit in its scientific name: serpentarius comes from the Latin for snake.

Which mammal, a known predator of pit vipers, carries blood proteins that neutralise rattlesnake venom?

The opossum, specifically the Virginia species, owes its resistance to blood proteins such as one named lethal toxin neutralizing factor.

Captopril, a drug modelled on a peptide in the venom of the jararaca pit viper, treats which condition?

Hypertension could be treated with a pill once chemists copied the venom peptide's trick of blocking ACE, an enzyme involved in regulating blood pressure.

Which is Great Britain's only venomous snake, a species that also lives north of the Arctic Circle?

The European adder is shy and seldom bites unless stepped on or picked up, and killing or harming one is illegal in Great Britain.

An invasive snake that arrived by accident after World War II wiped out most native birds on which Pacific island?

Guam offered so much prey and so few predators that the snakes there grow larger than they do in their native range.

Tens of thousands of garter snakes emerge each spring at the Narcisse Snake Dens in which Canadian province?

Manitoba's water-worn limestone caverns shelter the red-sided garter snakes through winter, and the pits hold the world's largest concentration of them.

The word 'cobra' is short for a phrase meaning 'serpent of the hood' in which language?

Portuguese cobra de capello was borrowed whole into English in the 1670s and only clipped to a single word in 1802.

The word 'viper' is a contraction of a Latin term describing which trait of the snakes?

Live-bearing is the sense of the Latin vivipera, and it fits most vipers, whose young develop inside the mother until they are ready to hatch.

Which branch of zoology, named from the Greek for 'creeping animal', covers snakes, other reptiles and amphibians?

Herpetology lumps the cold-blooded land vertebrates together, so the same specialists study frogs, salamanders, turtles and crocodilians.

What is the name for the fear of snakes, reported by about a third of adults?

Ophidiophobia is built on the Greek word for snake, and it ranks among the most commonly reported phobias of all.

Which Los Angeles Lakers star gave himself the nickname Black Mamba, after the fast-striking African snake?

Kobe Bryant took the name from the codename of Uma Thurman's assassin in the Kill Bill films, hoping his game would strike as surely as the snake.

In which book of the Bible does a talking serpent persuade Eve to eat the forbidden fruit?

Genesis itself never names the serpent as Satan or the Devil; that identification came from later Jewish, Christian and Islamic interpretation.

In the Book of Exodus, whose rod became a serpent and swallowed the rods of Pharaoh's sorcerers?

Aaron's rod later put forth buds, blossoms and ripe almonds, taken as proof of his tribe's exclusive right to the priesthood.

On which Mediterranean island, according to Acts, did a viper bite the shipwrecked apostle Paul without harming him?

Malta's islanders first took the bite as proof that Paul was a murderer, then, when nothing happened to him, decided he was a god.

In Greek myth, which god killed the serpent Python at Delphi and took over its oracle?

Apollo slew the serpent, which had presided over the oracle on behalf of its mother, the earth goddess Gaia, and made the shrine his own.

Which Greek goddess sent two snakes to kill the infant Hercules, who strangled one in each hand?

In one telling Hera struck when the boy was just eight months old, and his twin brother Iphicles could only cry out in fear.

Which figure of Greek myth went down to the underworld after a snakebite killed his wife Eurydice?

Orpheus lost her, in Virgil's telling, when she stepped on a viper while fleeing Aristaeus, and his mournful music won him leave to fetch her back.

In Virgil's Aeneid, which Trojan priest is crushed along with both of his sons by two sea serpents?

Laocoön had just warned the Trojans against the wooden gift left by the Greeks, and his death is the subject of a famous marble group in the Vatican.

Which Egyptian god's greatest enemy was Apep, a giant serpent known as the Lord of Chaos?

Ra was the bringer of light and upholder of order, so the serpent of darkness was his natural opposite, said in some myths to have sprung from Ra's umbilical cord.

Which Aztec deity, whose name means 'feathered serpent' in Nahuatl, had a great centre of worship at Cholula?

Quetzalcoatl ends in coatl, the Nahuatl word for serpent, and the resplendent quetzal was among the animals thought to represent the god.

In Hindu iconography, which god is generally shown with the serpent king Vasuki coiled around his neck?

Shiva wears him as an ornament, and the same serpent served as the rope when the gods and demons churned the Ocean of Milk.

The Great Serpent Mound, the largest snake-shaped earthwork known anywhere in the world, lies in which US state?

Ohio's effigy runs 1,348 feet, roughly a quarter of a mile, and was raised on the plateau of an ancient crater.

The Minoan snake goddess figurines were excavated in 1903 from the Bronze Age palace of Knossos on which island?

Crete's two figurines date to around 1600 BC, and their excavator, Arthur Evans, has since been criticised for his speculative restoration of the best-known one.

At which Maya city does the equinox sun cast a serpent-shaped shadow down the steps of El Castillo?

Chichen Itza's pyramid throws a row of triangular shadows along its north staircase, which ends in carved serpent heads at the base.

The bronze Serpent Column, cast to honour the Greek victory at Plataea, now stands in which modern city?

Istanbul inherited it when Constantine the Great moved the column from Delphi to his new capital in 324, and its three serpent heads survived until the late 17th century.

Which constellation, commonly drawn as a water snake, is the largest of the 88 in the night sky?

Hydra covers 1,303 square degrees and stretches more than 100 degrees across the sky, which makes it the longest constellation too.

In the Harry Potter books, what is the name of the rare language that lets wizards talk with snakes?

Parseltongue is a gift Harry reveals during a duelling class in Chamber of Secrets; it passed to him from Voldemort when the dark wizard tried to kill him.

Which Disney villain carries a cobra-headed staff and turns himself into a giant snake for the final battle?

Jafar uses the staff's hypnotic powers on the Sultan, and Aladdin defeats him by taunting him that the Genie is still more powerful.

In Disney's animated Robin Hood, the hypnotic snake Sir Hiss serves as aide to which character?

Prince John took the throne after Sir Hiss hypnotised the rightful king into leaving to fight in the Crusades.

In which Sherlock Holmes story is the murder weapon a venomous snake sent through a ventilator?

The Speckled Band turns out to be a deadly snake kept by Dr Roylott, and it ends the story by turning on its own master.

Which shock-rock singer made a live boa constrictor part of his 1970s stage show?

Alice Cooper let the snake wrap itself around him on stage, in a show that also staged his mock execution at the gallows.