Scientists Solve The Century-Old Mystery of Why This Special Insect Can Float in Water

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Scientists Solve The Century-Old Mystery of Why This Special Insect Can Float in Water
France Dernières Nouvelles,France Actualités
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Apart from fish, scientists have found only one other animal that can regulate its buoyancy in the water using swim bladders, and it's probably not what you were expecting.

larvae are the only insects close to being neutrally buoyant."

On a whim, Matthews took some of the larvae back to the lab and put them under a microscope. When he turned on ultraviolet light to illuminate the microscope's stage, he noticed the air-sacs start to glow a bright blue. Instead, they found phantom midge larvae could sink, rise, or float simply by manipulating the pH of their air-sac walls. This then allows gas to passively diffuse in and out, without the need for oxygen-carrying blood to inflate or deflate the organs.,"transforming pH changes into mechanical work against hydrostatic pressure."

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