Goldfish possess genetic traits that allow them to swell up to four pounds—the size of a Chihuahua. Experts say that's why you shouldn't release them into the wild.

They started a breeding program after receiving goldfish from Japan in 1878, whereupon they started sending the goldfish in ...

Something fishy is going on. A pet store goldfish went from “cute to brute” after it was found in a Pennsylvania waterway – with experts now warning against dumping unwanted fish into ponds ...

Goldfish may look small and cute in your home, but in the wild it's a different story. Releasing them into your local stream or lake is a bad idea. Following is a transcript of the video.

One would believe that natural selection would take care of the frequent-reproduction problem, but goldfish shockingly have no natural predators in most bodies of water across North America.

Following is a transcript of the video. The longest-living goldfish on record was 43 years old. But chances are your goldfish didn't even live a quarter that long. In fact, most goldfish don't ...

says that invasive goldfish will eat the eggs of native fish species and take over the critical habitats that other fish use for reproduction and shelter. The goldfish will also reproduce with the ...

The Commission received a goldfish from Japan in 1878 and started breeding them in a pond in Washington, D.C. Then, they sent ...

March 3 (UPI) --The U.S. Fish and Wildlife service is reminding pet owners not to release their goldfish into waterways after researchers in Pennsylvania found a massive "megalodon." The USFWS ...