Strange photos of deer covered in dark, warty lumps have gone viral, sparking fears of “mutant animals.” Wildlife experts explain it’s deer fibroma, a skin condition caused by a papillomavirus. Though alarming in appearance, it isn’t dangerous to humans or other animals, and the meat is still safe to eat. Deer spread it through direct contact, and most cases clear up naturally. Experts note climate change and online sharing have made such cases more visible, but reassure the public it’s not a threat—just unsettling to see.
