This cancer is contagious
nature video · Published on September 18, 2026
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Description
Researchers have discovered a contagious cancer in catfish—just the fourth example of tumour cells that spread naturally from one animal to another. - Written by Benjamin Thompson -From original reporting by Ewen Calloway - Edited & Produced by Maren Hunsberger - Stock images: Getty images/ Ian Waldie / Stopbox Studio / Cristina Andina / Hulton archive - Stock Footage: Getty images / Isara Methong - Stock Music: Triple Scoop / Robert Ames - Catfish photos courtesy of Vermont Fish & Wildlife and Vicki S. Blazer/USGS - Supervising Producer Shamini Bundell From Crud, E., et al. Nature. Brown bullhead catfish melanoma represents a novel transmissible cancer. (2026). https://doi.org/10.1038/s41586-026-10828-6
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