If you've ever heard the urban legend about released pet alligators growing to colossal sizes in sewer systems, you might be ...

In Presque Isle, Pennsylvania, a giant goldfish was caught during an electrofishing survey. It serves as a reminder of why it isn't a good idea to release pets into the wild. The U.S. Fish and ...

City of Burnsville via AP The Great Lakes are grappling with an unexpected — and unexpectedly large — obstacle. The common goldfish, a species native to Asia and often kept as a pet in the U.S ...