Rabbit with tentacles and horns growing from its head.

RABBITS with disturbing horn-like and tentacle-style growths on their heads have sparked concern, and a public warning to steer clear.

Wildlife officials say the bizarre condition is caused by a virus that leaves the animals with black, spiny protrusions.

Rabbit with tentacles and horns growing from its head.
Rabbits can develop head tumors caused by Shope papilloma virusCredit: 9News
Rabbit with tentacles and horns.
Surgery is usually needed to remove the tumors, and keeping rabbits away from pests helps prevent the diseaseCredit: 9News

Residents in Fort Collins, Colorado, have reported sightings of peculiar-looking rabbits throughout their neighborhoods, raising concerns.

Colorado Parks and Wildlife confirmed the growths are not dangerous to humans or pet but urged people not to approach or touch the animals.

Photos shared online show the rabbits with what look like tooth picks or quills jutting from their faces and mouths.

One local, Susan Mansfield, said she’s seen the same rabbit return to her yard for two years with the strange condition.

“I thought he would die off during the winter, but he didn’t,” Mansfield told NBC local affiliate KUSA.

“He came back a second year, and it grew.”

Another resident described the appearance as “a scabbiesh-looking growth” over the animal’s face.

The virus, according to CPW, causes wart-like protrusions that can resemble horns or tentacles.

Officials compared it to benign cancerous cells and said there is no cure.

While the growths generally don’t harm the rabbits, they can become problematic if they develop over sensitive areas like the eyes or mouth.

Horror as over 200 animals who ‘crammed in tiny spaces’ seized from Co Kildare property by ISPCA

CPW stressed the virus spreads only between rabbits and does not infect dogs, humans, or other wildlife.

However, residents are being told to give the infected animals space.

The advice is to avoid any attempts to help, feed, or handle them, no matter how harmless they might seem.

KUSA reported that some residents initially worried the rabbits might have the plague or another serious disease.

What Is Shope Papilloma Virus?

  • A viral disease causing wart-like tumors on rabbits, mainly on their heads, ears, and eyelids.
  • Spread by biting insects like mosquitoes and ticks.
  • Tumors can be benign or turn malignant (cancerous).
  • Commonly affects wild and pet rabbits, especially during summer and fall.
  • Treatment usually involves surgical removal of growths.
  • Prevention focuses on protecting rabbits from insect bites

“It looks like it was black quills or black toothpicks sticking out all around his or her mouth,” Mansfield recalled.

Others admitted feeling sympathy for the creatures but didn’t know what was wrong with them until officials stepped in.

The virus is believed to be relatively common among wild rabbits, but the dramatic appearance of the growths has drawn more public attention.

Wildlife experts said the best course of action is to simply leave the rabbits alone and let nature take its course.

Head Tumor and Cancer in Rabbits

Head tumors in rabbits can be caused by conditions like Shope papilloma virus, which leads to wart-like growths that may become malignant.

According to Pet MD, these abnormal growths often manifest on the animals’ ears, eyelids, or other head regions and are typically transmitted by biting insects like mosquitoes and ticks.

It is generally advised to surgically remove the tumors, although some may naturally disappear over time. Consistent veterinary inspections are crucial to check for any signs of recurrence.

Preventing insect exposure is key to reducing the risk.

Two rabbits eating dandelions in a grassy field.
Colorado Parks and Wildlife confirmed the growths are not dangerous to humans or pet (stock image)Credit: Getty

You May Also Like

How my father's legacy is changing the future for hundreds of kids: "The story of 9/11 is not done being written"

How a Father’s 9/11 Legacy Is Transforming the Future for Hundreds of Children

Each September, as a new school year begins, my mother, Patty Lewis,…
Lindsay Clancy's care in mental hospital is costing taxpayers more than half a million dollars a year

Taxpayers Pay Over $500K a Year for Lindsay Clancy’s Mental Hospital Care

Massachusetts taxpayers could be paying hundreds of thousands of dollars each year…
Venezuela ex first lady Cilia Flores seeks release from NYC jail over heart condition

Venezuelan Ex-First Lady Cilia Flores Seeks Release From NYC Jail Over Heart Condition

Venezuela’s former first lady is asking to be released from jail as…
Driver killed after plunging 50 feet from LA overpass in horror crash

Driver Killed After Car Plunges 50 Feet From Los Angeles Overpass

A deadly crash shook downtown Los Angeles early Friday after a car…
Lindsay Clancy fixation and alleged plot to poison husband emerge as accused mom claims psychosis

Lindsay Clancy Psychosis Claim: Husband Poison Plot Alleged

An Illinois mother charged in the strangulation death of her 2-year-old son…
4 shot inside North Carolina home, 2 killed as police identify person of interest

North Carolina Home Shooting Leaves 2 Dead, 2 Injured as Police Name Person of Interest

Two people were killed and two others were critically wounded Thursday morning…
Fire aboard cargo ship undergoing repairs at busy Chinese port leaves 25 people dead, five more injured

Cargo Ship Fire at Busy Chinese Port Kills 25 During Repairs

At least 25 people were killed Thursday after a fire broke out…
Teen survives two days on overturned skiff in remote Alaskan waters

Teen Rescued After Surviving 2 Days on Overturned Skiff in Remote Alaska Waters

A 15-year-old boy survived for nearly two days by clinging to an…
Family of 9/11 hero to retrace his steps in final Tunnel to Towers stop

Family of 9/11 Hero to Retrace His Final Steps at Tunnel to Towers Finale

The family of 9/11 hero Stephen Siller will honor the 25th anniversary…
‘Don’t wait’: New Yorkers born on Sept. 11, 2001, have learned extra special life lessons

Born on 9/11, New Yorkers Turn Tragedy Into Purpose

A quarter-century later, many still struggle to balance the joy of a…
Kamala Harris returns to campaign trail in two key California House races

Kamala Harris Rallies Democrats in Key California House Battles

Kamala Harris is reentering the California campaign arena, endorsing and raising support…
Anthropic says it disrupted scientists using Claude AI for possible biological weapons development

Anthropic Says It Blocked Scientists’ Claude Bioweapons Work

Anthropic said Thursday that it had shut down access for scientists who…