When Reddit user heavypickle99 was cleaning out a client’s backyard pond, he almost certainly wasn’t expecting to find two tailless little goldfish at the bottom. After rescuing them and bringing them ...

Conservationists from the University of Nevada are increasingly finding oversized goldfish in Lake Tahoe— and they’re attributing it to the practice of aquarium dumping. The hardy goldfish, a relative ...

Released into the wild, the humble goldfish can grow to a monstrous size and destroy habitats for native species. Canadian researchers are tracking the fish, so that they might be culled. By Livia ...