Released pet goldfish are growing to the size of a football and wreaking havoc on ecosystems in Minnesota and elsewhere. Reading time 3 minutes It’s a common story: A family gets a goldfish, but then ...

Goldfish are hardy, fairly simple to care for, and eye-catching, so it’s no wonder they’re popular pets. These passive freshwater fish are ideal for renters who can’t have other types of pets, ...

A 14-inch goldfish removed from the Niagara River. [Related: Whatever you do, don’t set your pet goldfish free in a stream.] In the Great Lakes, they’re an invasive species that will “eat anything and ...

Did you know that your pet goldfish could be an invasive species? That's right. Goldie, Bubbles, and all your other adorable pet goldfish can be incredibly harmful to Tennessee ecosystems. If you need ...

Looking after a pet can teach your child about compassion, responsibility and coping with loss. For their first animal companion, though, it makes sense to choose something small and relatively low ...

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 ...

Photos showing enormous goldfish caught in a harbor in Canada have been released by wildlife authorities, warning people that this is what can happen when pets are released into the country's ...

Fisheries officials in Canada are sharing images of monstrous goldfish pulled from a Lake Ontario waterway and begging the public to stop releasing aquarium fish into the wild. “Ever wonder what ...