Rabbits with 'Horns': The Shope Papillomavirus

In Fort Collins, Colorado, a group of rabbits has been attracting attention due to their unusual appearance. These cottontails have developed grotesque, horn-like growths on their faces, leading to nicknames such as 'Frankenstein bunnies' and 'demon rabbits'. However, scientists assure that there's no cause for alarm.

The rabbits are infected with the Shope papillomavirus, a relatively common virus that causes wart-like growths. These growths can protrude from the rabbits' faces, resembling horns. While the sight may be unsettling, the virus is mostly harmless to the rabbits.

Interestingly, this virus has a rich history. It's believed to have inspired the centuries-old jackalope myth in North America, which told of rabbits with antlers. The virus has also contributed to scientific research, helping scientists understand the connection between viruses and cancer.

Colorado Parks and Wildlife spokesperson Kara Van Hoose explains that seeing infected rabbits is not uncommon, especially during summer when virus-spreading fleas and ticks are most active. The rabbits' immune systems can fight off the virus, causing the growths to eventually disappear.