A rabbit in Fort Collins with horn-like growths sparked a viral fascination worldwide, but experts say it’s a harmless, ...

Wildlife officials in Colorado are monitoring an unusual increase in cases of Shope papillomavirus, a disease affecting wild ...

The rabbits – also nicknamed “Frankenstein bunnies” – with their bizarre “horns” were once the stuff of ancient folklore.

The ‘zombie’ squirrels are covered in hairless, wart-like growths stemming from a condition called fibromatosis ...

Unusual-looking rabbits have recently been spotted in Washington, sporting wart-like growths that can resemble horns.

It's the cottontail papilloma virus (CRPV) at work - giving rise to the 'jackalope' myth (rabbit with antlers) in modern times - which causes benign, Lovecraftian tumours to materialise on the head of ...