Reports and sightings of cottontail rabbit papillomavirus have been documented for centuries, but the symptoms have gone viral in a new sense this summer. Photos of wild rabbits with wart-like horns ...

Add Yahoo as a preferred source to see more of our stories on Google. Cottontail rabbits with horn-like growths on their heads have appeared in Fort Collins in recent weeks, causing concern of the ...

Recently, some wild rabbits have been seen in the U.S. with "horn-like" growths spurting from their heads that are caused by a viral infection, according to experts. "Rabbit papillomas are growths on ...

Add Yahoo as a preferred source to see more of our stories on Google. Rabbit with the papilloma virus, which infects rabbits and causes keratinous carcinomas, typically on or near the animal's head.

Wild rabbits with strange black growths on their heads have caused concern among Colorado residents, with some referring to them as “Frankenstein” rabbits. According to The New York Times, officials ...