From geese flying through the sky in formation to schools of fish swimming in the ocean, the world’s creatures show an efficiency that is the envy of physicists, architects and designers. Writer Gary Ferguson explains the inspiration that we humans can draw from how energy flows in the natural world.

The old take-make-use-lose model of industrial design has depleted resources and dumped waste into the environment. By taking nature as our model and mentor, we can transform manufacturing — and the earth, says economist Kate Raworth.

What’s that too-often quoted aphorism? “Good artists copy; great artists steal”? In this nuanced conversation, biologist Janine Benyus speaks with Tim Brown, chief executive of IDEO, to discuss what’s really interesting about borrowing.