Topic

Canada–United States border

international border between Canada and the USA

Also known as border between Canada and the USA, border between Canada and the US, border between Canada and the United States of America, border between Canada and the United States, border between the USA and Canada, border between the US and Canada

In the news

coverage spread: L40/C40/R20

Transmissible Cancer Found in Freshwater Fish

UVM researchers have identified a transmissible cancer—melanoma—in brown bullhead catfish from Lake Memphremagog, the first such cancer documented in a freshwater fish. Genome analysis shows the cancer cells spread like parasites among fish, with about a third of the local population affected and no human risk, while transmission may be linked to spawning and environmental factors.

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Key facts

Country: Canada, United States

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