Reduce. Reuse. Recycle. Rethink. Those concepts are not new. In fact, they exist in nature. If we look at nature, we see no waste. Everything in nature is reused and recycled, right down to every tiny bone and every small leaf. Waste is a man-made invention - and in the world with a growing human population and increasing resource scarcity, nature can inspire humans to a more circular thinking. And it is about time.