The growths are most likely caused by a summertime virus common in some U.S. states, but wildlife officials say there is no ...

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

The grotesque “Frankenstein”-esque rabbits — once just a Colorado curiosity — are now turning up in Minnesota and Nebraska, ...

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

Colorado Parks and Wildlife: Scary-looking rabbits were hopping around Fort Collins. These weren’t your standard cute, fluffy ...