Some cottontail rabbits in Fort Collins, Colorado, have been drawing attention because they have wart-like growths on their faces that look like horns.

Viral photos have inspired a fluffle of unflattering nicknames, including "Frankenstein bunnies," "demon rabbits" and "zombie rabbits."

Rabbits spotted with "tentacles" or horns growing out of their heads. But it's really happened in Colorado. "There are really rabbits with what look like tentacles growing out of them," USA Today reported.