Strange rabbits with growths resembling tentacles or horns have been spotted across parts of the US, caused by a viral disease known as cottontail rabbit papilloma virus (CRPV). This virus is carried by blood-feeding insects and causes tumors to develop on the skin of rabbits, sometimes progressing to cancer.
These tumors can appear around key areas like the face, ears, and limbs, possibly blocking eyes and mouth, which impairs the animals’ ability to survive. Infection can spread through bites or close contact in colonies.

Wildlife experts say the tumors usually don’t harm rabbits significantly unless they prevent eating or drinking, and euthanasia is only advised if rabbits suffer severe impairment.
Interestingly, these “horned” rabbits may have inspired the jackalope myth, a legendary animal thought by many to be purely fictional but possibly linked to rabbits affected by this virus.

Understanding CRPV is important for conservation efforts and offers insight into how diseases can alter wildlife appearance and health, prompting both fascination and concern.