According to the Bureau of Land Management Utah, bears have been sighted in Grandstaff Canyon and along the Colorado River, in the Dewey Bridge to Hittle Bottom area. So if you are hiking or boating around Moab, officials are asking you to take extra precautions.

The growths are not harmful to humans or pets, but it's recommended to keep a safe distance and avoid handling infected rabbits.

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