It's like when you get a large concentration of people. If someone is sick and it's something that spreads easily, others are ...

The ‘zombie’ squirrels are covered in hairless, wart-like growths stemming from a condition called fibromatosis ...

Rabbits infected with the Shope papilloma virus have growth on their heads and faces resembling “horns and tentacles.” ...

Across the U.S. and Canada, squirrels are appearing with grotesque tumors due to squirrel fibromatosis, a viral skin disease ...

Wildlife experts warn that “zombie squirrels” and “Frankenstein rabbits” show how parasites and diseases can alter animal behavior, raising concerns about ecological impact and future human ...

Squirrels with pox and rabbits with horns. Learn more about the viruses impacting these small mammals.