Wild rabbits with strange black growths on their heads have caused concern among Colorado residents with some referring to them as “Frankenstein” rabbits.

A group of rabbits in Colorado with grotesque, hornlike growths may seem straight out of a low-budget horror film, but scientists say there’s no reason to be spooked — the furry creatures merely have a relatively common virus.

Colorado Parks and Wildlife: Scary-looking rabbits were hopping around Fort Collins. These weren’t your standard cute, fluffy bunnies; they had horn-like growths protruding from their faces and bodies.