Shope papillomavirus was first identified in the 1930s by Dr. Richard E. Shope of The Rockefeller University. His work helped scientists understand links between viruses and cancer, such as the human papillomavirus that causes cervical cancer.
The condition also may have inspired the legendary North American jackalope — a mythical rabbit with antlers. As USA Today points out, folklore about horned rabbits predates the modern understanding of the disease by centuries.
Sightings and Viral Photos of Frankenstein Bunnies
The latest attention began when Fort Collins residents started posting photos of the rabbits online. Some images show black, tentacle-like protrusions that seem almost fictional. Social media nicknames have ranged from “Frankenstein bunnies” to “demon rabbits” and “zombie rabbits.”
Van Hoose says sightings are “not uncommon” in Colorado this time of year:
“We get calls every summer about rabbits like this. It’s just that social media amplifies it now.”
What Happens to Infected Rabbits?
In most cases, infected rabbits recover naturally once their immune systems eliminate the virus. However, if growths develop on the mouth or eyes, they can prevent eating and lead to malnutrition or secondary infections. In rare cases, cancer may develop if the virus persists.