New York, August 19: Several images have surfaced on social media showing wild rabbits in Colorado in the United States with horn-like black growths coming out of their heads. The users are claiming that the mysterious “black tentacle virus” has gripped the rabbits, which is causing the black horns. However, wildlife officials and scientists dismissed the disease and said it poses no risk to humans or other species.
"A bizarre virus is turning ordinary rabbits in the US into grotesque, horned creatures with black, tentacle-like growths sprouting from their faces – with sightings are on the rise. The mutated rabbits have been spotted around Fort Collins & infected by the cottontail papilloma virus, also known as Shope papilloma virus, which causes tumours to grow on or near the animal's head," a user wrote on X. Did a Whale Attack a Boat, Injuring 40 People? Fact Check Reveals AI-Generated Clip Going Viral With Netizens Believing It To Be True.
Fake Claim of Virus Turning Rabbits in US Into ‘Grotesque, Horned Creatures With Black, Tentacle-Like Growths Sprouting From Their Faces’

User Shares Fake Claim of Rabbits With Black Horn-Like Growths

Colorado Rabbits Spotted With 'Horn and Tentacles', Users Float Fake Virus Claim

However, experts have dismissed the claims of ‘Black Tentacle Virus’ disease and said that the condition is linked to the Shope Papilloma virus outbreak, a rabbit-specific virus known for nearly a century. According to Colorado Parks and Wildlife (CPW) and AFP, the disease spreads only among rabbits, primarily through insect bites such as mosquitoes and ticks. It causes wart-like tumours, typically on a rabbit’s head, ears, and face. Was a Megalodon Found on Australia Beach? Fact Check Reveals AI-Generated Clip Going Viral With Netizens Believing It To Be True.
Experts Dismiss New Virus Claim
🐰 Viral pics of rabbits with bizarre head growths sparked panic on social media mi-August over a mysterious "black tentacle virus." But experts told AFP it is an old condition, harmless to humans and most often benign even in rabbits.https://t.co/UOse3xMe5U pic.twitter.com/xLcYr9Y57I
— AFP Fact Check 🔎 (@AFPFactCheck) August 18, 2025
The experts said it is not transmissible to humans, cats, dogs, or any other species. Experts like Dr Robert Timm from the University of Kansas and Karen Fox from Colorado State University confirm there is no public health risk and advise the public not to harm or approach infected animals.
Fact check
Mysterious 'black tentacle virus' is causing ‘scary’ horn-like and tentacle-shaped growths on wild rabbits. It can infect other species.
The claim is fake. The condition is caused by Shope papilloma virus.
(The above story first appeared on LatestLY on Aug 19, 2025 06:32 PM IST. For more news and updates on politics, world, sports, entertainment and lifestyle, log on to our website latestly.com).













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