Folks in Fort Collins are referring to the animals as “Frankenstein bunnies,” “demon rabbits” and “zombie rabbits.”

The unsightly bunnies are infected with cottontail rabbit papillomavirus, which can cause growths that resemble warts or tentacles.

Folks in Fort Collins are referring to the animals as “Frankenstein bunnies,” “demon rabbits” and “zombie rabbits.”

The condition affecting a group of cottontails in Fort Collins could be behind the centuries-old jackalope myth.