As weird and concerning as they appear, the virus that causes the dark, wart-like horns or tentacles to grow on cottontail rabbits is relatively common and usually not anything to worry about.

Rumors spread online that rabbits infected with a virus that creates a tentacle-like growth on their faces were "invading" the U.S.

AI: terrifying bunnies with spiny black tentacles on their faces have been spotted in Colorado. And, yes, they are real. As the local news station 9News reports, rabbits bearing bizarre, spike-like growths on their faces have been repeatedly observed in Fort Collins in recent months.