Giant goldfish are routinely found in Alberta waters.

Add Yahoo as a preferred source to see more of our stories on Google. Did you know that your pet goldfish could be an invasive species? That's right. Goldie, Bubbles, and all your other adorable pet ...

That little goldfish may seem harmless when swimming around a glass bowl, but new research suggests it can become a hazard for lakes and ponds. A study published in the Journal of Animal Ecology last ...

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 ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Photos showing enormous goldfish caught in a harbor in Canada have been ...

Invasive species are one of the leading causes of global biodiversity loss, and the pet trade is responsible for a third of all aquatic invasive species. Pet owners releasing unwanted pets into the ...

Goldfish can grow to large sizes, reproduce quickly, decrease water quality and gobble up the resources native species need to survive when released into a body of water bigger than a fishbowl. Kelli ...

Goldfish rarely receive much attention beyond the role of household pets. They sit quietly in tanks, circle around artificial plants, and are often treated as decorative additions rather than animals ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Looking after a pet can teach your child about compassion, ...

Goldfish rarely receive much attention beyond the role of household pets. They sit quietly in tanks, circle around artificial plants, and are often treated as decorative additions rather than animals ...