Photos of the cottontails inspired nicknames like “Frankenstein bunnies,” “demon rabbits” and “zombie rabbits.” ...

Fort Collins residents spot cottontail rabbits with hornlike growths, dubbed "Frankenstein bunnies," caused by Shope ...

People in northern Colorado have been reporting sightings this month of wild rabbits with black horns and tentacles on their faces. The rabbits appeared to have “black quills or black toothpicks” and ...