The cancer manifests as raised black lesions on the fish’s skin, along with lumpy tumors. The cause has long eluded ...

Researchers have discovered a contagious cancer in catfish – just the fourth example of tumour cells that spread naturally from one animal to another. The others are a sexually transmitted tumour in ...

For many years now, anglers have been catching brown bullhead in Lake Memphremagog that are riddled with lesions and tumors. Now, scientists say they've confirmed it's a rare kind of contagious cancer ...

For more than a decade, there's been something fishy going on in a lake that straddles Vermont and the province of Quebec. It ...

A team of Vermont researchers has discovered that mysterious black skin lesions afflicting catfish in Lake Memphremagog and ...