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A little wonder, every day

The Diving Bell Spider Lives in an Underwater Silk Bell

Титульна AI-згенерована ілюстрація / AI-generated cover illustration. Diving bell spider inside its silk-supported air chamber beneath freshwater plants.
Female *Argyroneta aquatica* beneath water with its air bell.
*Argyroneta aquatica* near the water surface with air bubbles on its body.
AI-generated educational view of a spider in its air bell with a conceptual oxygen-diffusion overlay.
AI-generated composite view of air-bubble collection at the surface and a spider descending among plants toward its bell.
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Титульна AI-згенерована ілюстрація / AI-generated cover illustration. Diving bell spider inside its silk-supported air chamber beneath freshwater plants.

Listen to fact0:00 / —

The diving bell spider (*Argyroneta aquatica*) spends almost its entire life beneath fresh water. It spins a silk chamber shaped like a bell among aquatic plants and fills it with air carried down from the surface. Dissolved oxygen can pass from the water into the air inside the bell, so the chamber works as a physical “gill” for the spider while it rests. The air supply changes over time, so the spider sometimes renews it at the surface.