Aquarium fish are the most popular pet in America, with nearly 12 million households owning more than 158 million fish!

Scientists use ear growth rings to determine a fish's age.



Tennessee's 130,000 square foot public freshwater aquarium is the largest in the world.

Fish keeping began with the Sumerians 4,500 years ago.

Fish sleep with their eyes open!

A baby fish is called a "fry."