All Microbes of the Earth articles

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    Features

    Bottling the extremes: culturing the hidden microbiomes of caves and deserts

    2026-05-31T10:07:00Z

    Imagine an environment so extreme that most life cannot survive: a pitch-dark cave deep beneath the mountains of Northern Spain, or a hyper-arid desert in Chile where rainfall is virtually non-existent. These are not lifeless wastelands. Beneath cave walls and within the dusty top layer of desert soils, thriving communities of cyanobacteria, green algae, and fungi quietly engineer their ecosystems: fixing carbon, weathering rock, and cycling nutrients in conditions that would defeat most organisms on Earth.