Wild rabbits in Fort Collins with tentacle-like growths are infected by a virus called Shope papilloma virus, often mistaken for the mythical jackalope.

Rabbits in Colorado went viral—and sparked concern—after growing black, tentacle-like horns on their head and neck. Thankfully, there’s an explanation that doesn’t involve monster bunnies.

Recently, some wild rabbits have been seen in the U.S. with "horn-like" growths spurting from their heads that are caused by a viral infection, according to experts.