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"Rapid" Water Adds Oxygen, photo by Mikkie Moore

Fish Facts

Michaela Moore, UW-Milwaukee First Year Biology Major   What do fish breathe? Fish breathe oxygen, much like humans. However, fish don’t breathe air like humans do, they breathe the oxygen that is dissolved in the water. They don’t breathe oxygen in its molecular form H2O) though, they breathe oxygen as a gas (O2.). (Cary Institute […]

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