The featured image of the post shows the pattern and texture of a leaf, the parallel angled lines giving an optical illusion to the viewer.
“The beauty of the natural world lies in the details.” – Natalie Angier
“Patterns in nature are visible regularities of form found in the natural world. These patterns recur in different contexts and can sometimes be modelled mathematically. Natural patterns include symmetries, trees, spirals, meanders, waves, foams, tessellations, cracks and stripes.” – Wikipedia