"Patterns in nature#Cracks" . "nature and mathematics" . "patterns" . . "natural pattern" . "patterns of nature" . "Trees" . . "Patterns in nature#Types of pattern" . "Patterns_in_nature#Trees,_fractals" . "Patterns_in_nature#Tessellations" . "pattern" . "natural patterns" . "recurrent patterns" . "elaborate skin patterns" . "spirals in nature" . "Patterns in nature#Da Vinci branching rule" . "trees, fractals" . "spatial patterns" . "nature's patterns" . . . "natural phenoma" . "Natural fractals" . "naturally occurring patterns" . "forms observed in nature" . "patterned with stripes or spots" . . . "in biological settings" . "form found in nature" . . . "patterns seen in nature" . "Patterns in nature" . "the language of mathematics" . . "patterns in natural environments" . "nature" . "patterning" . "naturally patterned" . "patterns that nature creates" . "Patterns in nature" . "patterns in nature" . "Patterns in nature#History" . "Patterns in nature#Causes" . . "Patterns in nature#Tessellations" . "skin pattern" .