In the San Francisco Bay Area, slices of nature pop up in the most unexpected places, a testament to the region's wealth in biodiversity and the resilience of its natural systems. Bringing nature to urban areas is not just about ensuring the survival of species, but enhancing people's quality of life through a fulfillment of our innate need to be with nature.

Tiny worlds Slime molds (genus Physarum) tower about one millimeter high, lined up along a redwood needle.

A Slime of One’s Own

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To find slime molds, look for the damp places. Your quarry will be visible to the naked eye when it joins forces by the thousands to coalesce into blobby shapes—like undercooked pancakes, left on logs at Tilden Park, or a lattice of high-gloss mustard, in the hills near Mount Tam.