Contagious Cancer in Catfish | Calgary News

A bizarre, contagious cancer is spreading among brown bullhead catfish — and scientists are racing to understand how it’s moving across lakes. This rare transmissible cancer, only the fourth known in animals, spreads like a disease between fish, with tumors made of identical clone cells. First spotted near the Quebec-Vermont border, researchers now suspect it’s reached New Brunswick after a local fisherman reported strange sightings. DNA tests are underway to confirm if this is the same cancer — and why melanoma is specifically appearing in these fish. While not a human health threat, officials urge caution against eating affected fish. Listen in comfort:Get a discount on a Soli Pillow: http://solipillow.com/discount/dnn. Advertise on DNN:[email protected] This is an automated, high-level news summary based on public reporting.Report issues to [email protected]. View sources & latest updates:https://sources.thednn.ai/1563b78a2750ed11