Answer: Dried mud crack pattern

What you're looking at

Dried mud crack patterns are one of nature's most geometric creations, found anywhere that clay-rich soil, lake beds, or river deltas have dried out after being wet. You've probably seen these distinctive polygonal cracks in dried-up ponds, mudflats, or even in your garden after heavy rain. They're a common sight in nature and an iconic symbol of drought and desiccation.

When photographed as an extreme close-up, a dried mud crack pattern becomes an abstract puzzle of intersecting lines and raised ridges. The texture reveals individual clay platelets and the intricate network of fractures at high magnification. It's hard to recognise because the familiar scale and context disappear, transforming a simple natural feature into what looks like an aerial map or alien landscape.

Hunt for geometric patterns with sharp, raised ridges and intersecting lines that suggest natural fracturing or shrinkage.

How players did

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Most common wrong guesses: starfish