Material Based Modelling - Considering material structural strategies

Cancellous Bone Structure - Capable of increasing density to support structural loading- "load-induced variable densities"

Prismatic Basalt Columns - self organised structures.

http://en.wikipedia.org/wiki/Giant's_Causeway

Voronoi Patterning - a system of organising points so that all objects are the same distance from other objects - http://moebio.com/research/voronoicity/