"The number and size of the goldfish that had to be removed really shows why this species is such a challenge when released to nature," Campbell River utilities operations manager Steve Roehr said.

If you think you're doing the goldfish a favor by releasing it, you're not! Instead, you're setting the stage for an ecological disaster, which could threaten hundreds of other species.

Imagine a fish worth more than a small fortune. The Totoaba, a creature of the Gulf of California, holds the dubious ...

Some goldfish were found to have levels well above ... adaptation that produces a duplicate set of genes that allows the species to maintain their original function but also to keep the back ...

This is called environmental variation. Humans, dogs and goldfish are examples of species. Different species have different characteristics from each other. For example, dogs have tails and humans ...