A massive "megalodon" of a goldfish caught in Presque Isle, Pennsylvania, is a good reminder of why people shouldn't release their pets into the wild, the U.S. Fish and Wildlife Service says.

Gigantic goldfish wreaking havoc in local lakes may sound like something out of a throwback sci-fi flick, but it's all very real. The U.S. Fish and Wildlife Service is sharing pics of “massive ...

The pet store goldfish, now huge from living in the wild, was found in a waterway in Presque Isle State Park, wildlife officials said. Photo by Matt Basista with the U.S. Fish and Wildlife Service ...