A bigger-than-usual discovery in Pennsylvania has prompted officials to warn what happens when "cute" turns to "brute" — as they're reminding the public that leaving a pet goldfish in the wild can ...

We’re gonna need a bigger boat. Officials in Alberta, Canada, say dumping of live goldfish into the ecosystem has resulted in freakishly large fish. The invasive species has no natural predator and is ...

In the wild, goldfish can grow to be the size of footballs and wreak havoc on the ecosystem Kelli Bender is the Pets Editor at PEOPLE. She has been working at PEOPLE since 2013. Her work has ...

BURNSVILLE, Minn. — You'll want to think twice before dumping that county fair goldfish you won into a nearby stream or pond. The City of Burnsville tweeted out some pretty shocking photos Friday ...

In case you didn't know, goldfish aren't meant to survive in saltwater. Yet that's what James Tweedley and researchers from the Centre of Fish and Fisheries at Murdoch University discovered in the ...

PET goldfish released into the wild are turning into 2ft killing machines which gorge on insects and tadpoles, experts claim. They are wreaking havoc on native species, outcompeting rivals and ...

You may think dumping goldfish into a river is a harmless act, but in reality the fish can become destructively big. Researchers from the Centre of Fish and Fisheries at Murdoch University have been ...

Pet goldfish released into the wild are wreaking havoc on native species because of their insatiable appetites and thuggish behaviour, new research suggests. Once let loose in open waters they ...

Brandon Lawmaster, 33, of Auburn, caught what appears to be an over-sized goldfish in the Saginaw Bay Sunday, June 23. LAKE MICHIGAN - The next time you're cleaning your kid's fish tank and are ...

Releasing a goldfish into the wild can create "an invasive problem that can last decades," the U.S. Fish and Wildlife Service ...