CAD design tool that optimizes 3D structures to use only the minimum material needed, similar to bones or sponges. Check it out here: http://www.solidthinking.com/morphogenesis/
via Core77:
"No, that's not a coliseum for interstellar gladiators from the next installment of the Alien franchise, it's a demonstration of a new set of design tools, included in the newest release of ID CAD software SolidThinking. The technology, which ST is calling Morphogenesis, is a sort of semi-automated biomimicry toolbox, and after an hour-long phone and webinar demo last week, we have to say it's unlike anything we've come across in the CAD world to date."