A spiral aloe (aloe polyphylla) in the UC Berkeley Botanical Garden. ....."Fibonacci numbers and Phi are related to spiral growth" "If you sum the squares of any series of Fibonacci numbers, they will equal the last Fibonacci number used in the series times the next Fibonacci number. This property results in the Fibonacci spiral seen in everything from sea shells to galaxies"
maple samara in flight Maple samaras fly with one wing In late April, the ground becomes littered with samaras, the winged seeds of maple trees. With the right wind, the single-winged "whirlybirds" can carry the tree's embryos more than a mile.