technology

First Transmissible Cancer Discovered in North American Catfish

25 Temmuz 2026Wired

Scientists have discovered the first known transmissible cancer among freshwater fish, specifically in catfish located in a lake that crosses the US-Canada border. This finding raises significant concerns about the implications for fish populations and ecosystems.
The transmissibility of cancer in this manner is unprecedented in aquatic species, marking a notable development in the study of cancer biology.
Transmissible cancers have been documented in some species, such as Tasmanian devils, but this is the first instance reported in freshwater fish. The presence of this cancer in catfish raises questions about environmental stressors and the health of aquatic habitats, particularly in regions where fish populations ar…
The discovery of transmissible cancer in catfish could reshape our understanding of cancer's evolution and its potential for cross-species transmission. This phenomenon may not only affect catfish populations but could also serve as a warning signal for other aquatic species, prompting further research into environm…

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This article is for informational purposes only and does not constitute medical or ecological advice.

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