In this issue: Spiral Hegira: PAX Scientific's Curving Path to Clearing the Air by Tom McKeag; Hiding in Full View by Adelheid Fischer; Portfolio by Rob Kesseler; Growing the Business of Bio-inspired Design in the Empire State by Tom McKeag; Interviews with Brent Constantz and Anamarije Frankic; Framing Your Problem with the Bio-Design Cube by Tom McKeag.