They have three-second memories, all they need is a round bowl and they don't even live long. These, among others, are the reasons goldfish are labelled as "easy pets". And whilst that might be true, ...

The common goldfish, the tiny minnows, the fish tank favorite tetra, the famous Electric Eel, the enormous Mekong Giant Catfish that weighs in at nearly 700 pounds, the gnashing-teeth piranha, the ...

Scientists drafted the blueprint for how to build a common goldfish. Now they'll use it to find out what gives ornamental goldfish their nuanced features, gaining insight into human health. A fish is ...