The jackalope, a horned rabbit of the American West, is a real living animal rather than a taxidermy invention
Where the evidence lands: ContradictedThat the jackalope is not merely a taxidermy joke but a genuine living animal, a horned or antlered hybrid of jackrabbit and antelope inhabiting the American West, elusive and rarely captured, rather than a manufactured curiosity.
Believed by: Almost no one takes the hybrid animal literally: the jackalope survives as a beloved tall tale, a roadside icon, and a running joke of the American West, with the occasional tourist gamely buying a novelty hunting license
The full story
What is documented
Start with what is solid, because the jackalope is one of those cases where the real story is better than the legend. The horned rabbit you see on a postcard or above a bar is a taxidermy creation: a jackrabbit mount fitted with the antlers of a deer or a pronghorn. Its modern American form has a documented human origin. In or around 1932, in Douglas, Wyoming, brothers Douglas and Ralph Herrick, who had learned taxidermy by mail order, joined a jackrabbit carcass to a pair of antlers and sold the result to a local hotel. Taxidermists have manufactured jackalopes ever since.
Beneath that novelty sit two genuinely real things. The first is a virus. Wild rabbits do sometimes grow horn-like keratin growths, and in the 1930s the virologist Richard Shope showed those growths were tumors caused by a transmissible agent, now called the Shope papillomavirus. The second is an old folklore tradition: the horned hare, or lepus cornutus, was catalogued as a real animal by European naturalists as far back as the 1500s.
So the question this file weighs is narrow. Nobody serious disputes the mount, the virus, or the folklore. The only claim to rate is the literal one: that a living horned rabbit-antelope hybrid actually roams the American West. On that, the record is clear, and it is worth walking through why.
The legend people tell
The affectionate version of the belief deserves a fair hearing, because it is not built on nothing. Horned rabbits are not simply invented out of air: people really have seen them. A rabbit with a bony-looking spur jutting from its skull is a real sight on the plains, unsettling enough that a witness might reasonably conclude some strange horned breed exists.
And the tradition is ancient and respectable. This is not a single Wyoming gag. Serious early naturalists, Gessner among them, listed the horned hare in their compendiums of the animal kingdom, and the creature recurs across European folklore, from the Bavarian wolpertinger onward. When a belief shows up independently in old scholarship and in living folk tradition, dismissing it out of hand feels premature.
The mounts themselves are persuasive objects. A well-made jackalope looks anatomically plausible, the antlers seated as if they grew there, and the tall tales that grew up around it (that it sings back to cowboys, that it is nearly impossible to catch) give the animal a personality that a mere hoax rarely earns.
People really did see horned rabbits, and serious books really did list them. The honest question was never foolish. What matters is the answer the evidence finally gave.
That is the strongest form of the case: not that anyone has bagged a live jackalope, but that horned rabbits are a real visual phenomenon with a long paper trail, and that the instinct to treat them as a real kind of creature has understandable roots.
Where the claim breaks down
The instinct is understandable; the literal conclusion is not supported. The gap between horned rabbits are seen and a rabbit-antelope hybrid species exists is where the evidence stops.
The decisive point is that there is no animal. Not a live one, not a carcass, not a skeleton, not a scrap of tissue that yields hybrid genetics. Rabbits and antelope sit on wholly separate branches of the mammal family tree and cannot interbreed; the idea of a cross between them is a biological non-starter. Every physical jackalope in the world is a manufactured mount, and the American version has a named origin, a named town, and a named pair of brothers.
The old books cut the other way as well. That Gessner and his successors listed the horned hare is a case study in error copied forward: naturalists reused one another's illustrations, and hoaxers supplied the specimens by grafting small antlers onto stuffed hares. As biology grew rigorous, the horned hare was quietly struck from the roster of real animals, exactly as a mistaken entry should be.
Even the town of Douglas builds the punchline into the paperwork. Its official jackalope hunting license is valid for a single day of the year, June 31, a date that does not exist, and only between midnight and two in the morning. A civilization does not license the hunting of a real animal on an impossible date. The joke is stated in the fine print for anyone who cares to read it.
The real horned rabbit
Here the true story overtakes the legend, because the horned rabbits people actually saw were real, and explicable. In the 1930s Richard Shope examined wild cottontails carrying horn-like growths and demonstrated that a virus, transmissible in a cell-free extract, produced them. The growths are keratin, the stuff of fingernails, not the bone of a true antler, and they erupt from the animal's own infected skin.
That virus, the Shope papillomavirus, turned out to matter far beyond folklore. It became the first mammalian model of a cancer caused by a virus, and the line of research it opened contributed to the science behind the modern human papillomavirus vaccine, which prevents cervical and other cancers. A rabbit that looked like a monster helped, in the long run, to save human lives.
The phenomenon is not a museum relic, either. As recently as 2025, wild rabbits with horn-like protrusions turned up in Colorado and made national news; scientists identified the same virus and stressed there was no reason to panic. The horned rabbit, in other words, is genuinely real. It is simply a sick ordinary rabbit, not a species, and certainly not a hybrid with an antelope.
The horned rabbit is real. It is not a hybrid animal; it is a jackrabbit wearing hardware, or a cottontail carrying a virus that would one day help teach us how to fight cancer.
Why it endures
The jackalope survives not because people are fooled but because the legend is useful and delightful, and it draws on a few reliable human tendencies.
It sits on a real seed. Because virus-stricken rabbits really do grow horns, the story never feels wholly absurd; there is always a true fact just underneath to lend it a whiff of plausibility. A myth anchored to a genuine phenomenon is far stickier than one made of pure invention.
It is actively cultivated. Douglas, Wyoming, put up statues, prints hunting licenses, and has repeatedly asked its legislature to crown the jackalope the state's official mythological creature. Curio shops across the West keep the mounts on the shelf. Commerce and civic pride give the creature a permanent home.
And it belongs to a tradition of shared tall tales. The American West prizes the straight-faced whopper, and the jackalope, like the fur-bearing trout or the hoop snake, is a joke everyone is invited to be in on. Believing it a little is part of the fun; nobody is really being deceived, and that is precisely why the legend never dies.
Where the evidence lands
Hold the pieces apart. The taxidermy jackalope is a documented novelty with a known origin. Virus-induced horned rabbits are real and scientifically important. Centuries of horned-hare folklore genuinely exist. None of that is in question. The rated claim is only the literal one, that a living horned rabbit-antelope hybrid roams the West, and that claim is contradicted by everything we know: no specimen, no viable biology, and a paper trail that leads straight back to a taxidermy bench in Douglas, Wyoming. On that claim the verdict is Debunked.
This is not a knock on the legend, which is one of the more charming inventions of American folk culture, nor on the people who reported horned rabbits, who were often seeing something real. It is only a refusal to promote a novelty mount into a zoological species. The jackalope earns its place in this encyclopedia not as a hoax that fooled the world but as a story braided from three real threads: a joke, a virus, and an old tradition.
The satisfying part is that the truth loses nothing in the trade. A hybrid that never existed would have been a small curiosity. A rabbit whose real disease helped point the way to a cancer vaccine, dressed up by a couple of Wyoming brothers into a legend that outlived them, is a far better tale, and it has the advantage of being true.
What's still unexplained
- How much of the centuries-old European horned-hare tradition was inspired by real Shope-virus rabbits, and how much was pure invention or copied illustration, cannot be cleanly separated at this distance.
- The precise first date and details of the Herrick mount rest largely on family recollection and later obituaries, so the founding story, while well attested, carries the ordinary fuzziness of oral history.
- Whether informal horned-rabbit mounts circulated in the American West before the Herricks, given the older European wolpertinger and horned-hare traditions, is hard to establish, since novelty taxidermy rarely leaves records.
Point by point
The claim: The jackalope is a genuine living species, a hybrid of jackrabbit and antelope.
What the record shows: There is no such animal. Rabbits and antelope are not remotely close enough to interbreed, and no live jackalope, carcass, skeleton, or tissue sample has ever been produced. Every physical jackalope is a taxidermy assembly. The modern American version has a documented human origin in Douglas, Wyoming, around 1932, credited to the Herrick brothers.
The claim: People have really seen horned rabbits in the wild, which proves the creature exists.
What the record shows: Sightings of horned rabbits are real, but they are not of a hybrid species. They are ordinary rabbits infected with the Shope papillomavirus, which triggers keratin growths, sometimes horn or antler shaped, on the head and body. Those growths are tumors of the animal's own skin, not the antlers of a separate creature. The virus explains the sightings without any need for a new species.
The claim: Old scientific books documented the horned hare, so at one time it was accepted as real.
What the record shows: It was, and that is a lesson in how error propagates rather than proof of the animal. Sixteenth- and seventeenth-century naturalists such as Gessner listed the lepus cornutus and copied one another's illustrations, and hoaxers supplied mounts by grafting small antlers or horns onto stuffed hares. As biology matured, the horned hare was dropped from the catalogue of real animals. Its appearance in old books reflects the credulity of early natural history, not a lost species.
The claim: You can buy a jackalope hunting license in Douglas, so the hunt must be real.
What the record shows: The licenses are a novelty, and their own fine print gives away the joke. The official jackalope hunting season is a single day that does not exist on the calendar, June 31, with hunting permitted only in the small hours of the morning. The town issues the tags as tourist whimsy; they are a civic in-joke, not evidence of a huntable animal.
The claim: The antlers on a jackalope look natural, so they must grow on the animal.
What the record shows: On a taxidermy mount, the antlers are simply attached deer or pronghorn hardware fitted to a jackrabbit skin, which is why they look convincingly deerlike: they are deer antlers. On a real virus-infected rabbit, the growths are keratin, the same material as fingernails and hair, not the bone of a true antler. Neither case involves antlers native to a rabbit.
Timeline
- 1551The horned hare, or lepus cornutus, is described as a real animal in Conrad Gessner's Historiae Animalium and is repeated in later natural-history works across the 16th, 17th, and 18th centuries, often reusing the same borrowed illustrations. It is now regarded as fictional.
- 1930sVirologist Richard E. Shope investigates reports of wild cottontail rabbits with horn-like growths and shows the growths are keratin tumors caused by a transmissible virus, later named the Shope papillomavirus. His work becomes the first mammalian model of a virus that causes cancer.
- 1932In Douglas, Wyoming, brothers Douglas and Ralph Herrick, who had studied taxidermy by mail order, mount a jackrabbit carcass fitted with deer antlers. By family account, the carcass had come to rest beside a pair of antlers in their shop, suggesting the combination.
- 1930sThe Herricks sell that first mount, reportedly for ten dollars, to Roy Ball, who displays it at the La Bonte Hotel in Douglas. The oddity becomes a local talking point, and the brothers and other taxidermists begin producing horned rabbits for sale.
- 1940sThe jackalope spreads through the West on postcards, in curio shops, and above bars, accumulating tall tales: that it sings, that it mimics human voices, that it can only be caught with whiskey as bait. Douglas brands itself the jackalope's home town.
- 2003Douglas Herrick dies at 82. Obituaries, including one in The New York Times, credit him and his brother with originating the American jackalope, cementing the object's documented human history.
- 2005The Wyoming House of Representatives votes to name the jackalope the state's official mythological creature; the measure stalls in the Senate. Similar bills are reintroduced in later years, a running civic tradition around the legend.
- 2022Writer Michael P. Branch publishes On the Trail of the Jackalope, tracing the legend and connecting it to the real Shope-virus rabbits whose study helped lay groundwork for the human papillomavirus vaccine.
- 2025Sightings of wild rabbits with horn-like growths in Colorado draw national coverage. Scientists identify the cause as the Shope papillomavirus and note there is no cause for panic, a modern reminder of the biology behind the old horned-hare stories.
Contradicted. The jackalope is a taxidermy novelty: a jackrabbit mount fitted with deer or antelope antlers, popularized in Douglas, Wyoming, in the early 1930s and sold ever since as a tourist curiosity. That documented record is not in dispute. The rated claim is the literal one, that a horned rabbit-antelope hybrid exists as a living species of the plains. On the evidence, that claim is debunked. There is no specimen, no genetics, and no biology behind it. The genuine and fascinating loose end is that real rabbits do sometimes grow horn-like growths, caused by the Shope papillomavirus, and that centuries of European horned-hare folklore likely drew on sightings of such infected animals. That is a real phenomenon, and it is not the same as a hybrid species.
Sources
- 1.The Legend of the Jackalope, City of Douglas, Wyoming (official website) (2024)
- 2.The World's Scariest Rabbit, Smithsonian Institution (2022)
- 3.On the Trail of the Jackalope, The Scientist (2022)
- 4.Tall Tales and Other Oddities: The Fabulous Jackalope of Wyoming, American Heritage Center, University of Wyoming (2025)
- 5.Rabbits are sprouting virus-induced "horns" in Colorado. Here's why scientists say there's no reason to panic., CBS News (2025)
- 6.Book Review: On The Trail Of The Jackalope: How A Legend Captured The World's Imagination And Helped Us Cure Cancer, Forbes (2022)
- 7.The HPV Vaccine Story, National Library of Medicine (PMC) (2019)
- 8.Lepus cornutus, Wikipedia (2025)
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