Sightings of rabbits in northern Colorado with horn-like growths coming from their heads and near their mouths have recently stirred interest—and disgust—among local residents and across social media.

Residents of Fort Collins, Colorado, have been startled by an unusual sight: rabbits with black, tentacle-like growths sprouting from their heads and faces. These disturbing protrusions have earned ...

Haupt is a health and wellness editor at TIME. A cottontail rabbit in Minnesota with the papillomavirus. A cottontail rabbit in Minnesota with the papillomavirus.Michael Siluk/Universal Images ...

Fort Collins, Colorado has reported sightings of cottontail rabbits with tentacle-like, horned growths on their heads appearing in recent weeks, sparking concerns from citizens of the city about the ...