PETER SKINNER / SCIENCE PHOTO LIBRARY PETER SKINNER / SCIENCE PHOTO LIBRARY
A tangle of vines and roots form an abstract pattern on the lava rock face of a hillside in the Haena State Park, Kauai, Hawaii. The lava provides an area for the tree roots to spread and grow downwards while they in turn help protect the rock face from erosion and crumbling, forming a symbiotic relationship.
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