Caretakers in Aurora, Ontario were surprised to find goldfish swimming beneath the surface of a quiet local pond. At first, ...

The Northern Snakehead, a predatory and invasive fish, has been spotted again in the Schuylkill River, this time near Black Rock Sanctuary in Chester County.

Releasing animals into the wild might appear to be an act of kindness, but it often causes unintended harm. Whether it’s ...

Caption: The N.W.T. will install a boat washing station similar to this one, next spring. It's part of an effort to stop invasive aquatic species such as zebra mussels from entering the territory.

This is how Canada's quiet war against invasive carp is waged: with electro probes, underwater nets, traps and the grim ...

Goldfish and koi are both species of carp that can become invasive, but there are differences between the two species.

With invasive carp breeding just across the border, it’s not a question of if, but when they arrive in Canada. Now federal ...

One dad in Australia is leading the way to rid his community of invasive tilapia using a $6 fishing net from Kmart.

Researchers are looking at an invasive species of algae along the Atlantic coast as a possible reason for mercury in the food chain.

The Colorado River from Glenwood Springs to the Utah border is now considered positive for zebra mussels, an invasive species known to devastate ecosystems and clog critical infrastructure.

Outdoors Officials issue warning over problems caused by common pet goldfish — here's what you need to know The species is invasive and causing problems in ponds and Great Lakes alike.