In Colorado, rabbits have been observed with unusual growths resembling tentacles or horns on their heads. These deformities are caused by the cottontail rabbit papillomavirus, which leads to wart-like or tentacle-like growths. Health authorities have described the virus as benign. Similar viral diseases have also been reported in wild animals across several U.S. states, including New York, Pennsylvania, and Wisconsin, causing uncommon deformities. Additionally, deer across the United States are experiencing a rapid spread of a viral condition known as deer cutaneous fibroma, or "deer warts," characterized by large tumor-like growths. This virus is transmitted by mosquitoes. While there is some concern about the potential for these diseases to spread, officials emphasize the need for monitoring and reporting sightings of affected wildlife.