Schools of Prussian carp — a sperm-stealing fish capable of cloning itself — are invading Alberta waterways, says an Edmonton researcher. The discovery of wild goldfish the size of dinner plates in a ...

Prussian carp tainted invaders An infestation of Prussian carp have taken over Frank Lake, and the government is asking fishermen to help dispose of them.

It might seem like the humane thing to do with unwanted fish — bring them to a river and release them. Experts say this happens all the time with seemingly non-threatening species of fish. But certain ...

The tubby, out-sized goldfish, which can weigh in at up to three kilograms, according to the government, is able to reproduce rapidly without males You can save this article by registering for free ...