swim bladder

Example Sentences

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Otophysan fish improved this pathway by adding small bony "ossicles" that connect the air bladder, often mistakenly called the swim bladder, to the inner ear.

From Science Daily • Nov. 3, 2025

The vaquitas are caught and drown in illegal gill nets set for Totoaba, a Gulf fish whose swim bladder is considered a prized delicacy in China, worth thousands of dollars per pound.

From Seattle Times • Aug. 30, 2023

The swim bladder, an organ that helps the fish stay afloat, is highly prized in China for its perceived - though unproven - medicinal properties.

From BBC • May 5, 2022

Their lungs evolved from their swim bladder — the internal pool float that helps them hold to a certain depth.

From New York Times • Feb. 10, 2021

The air sac has become a swim bladder.

From The Elements of Geology by Norton, William Harmon