In the vast, nutrient-poor regions of the world's oceans, there is a constant struggle for survival. Yet tiny organisms known as Collodaria have thrived there for millions of years. These Collodaria host microscopically small algae that are essential for survival.

Source: [Phys.org](https://phys.org/news/2026-08-ocean-plankton-reveal-sugar-nutrients.html)

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