The Tiny Harness That Taught a Broken Fish to Swim Again
When a goldfish lost the ability to swim upright, its owner didn't give up — they built a tiny flotation harness from foam and tubing and watched it level out for the first time in weeks. Behind that act of ingenuity lies a fascinating and surprisingly complex piece of biological engineering: the swim bladder, a gas-filled organ that controls buoyancy with extraordinary precision.
Read More










