In this issue: The Pinch of Salt: Mimicking the Mangrove to Slake the World’s Thirst by Tom McKeag; Collaborating with Beavers by Rob Dunn; an interview with Maya Ronchetti; a portfolio: Poiésis and ancestry as trajectories of water curated by Nous Ecossistema; The Science of Seeing: An Inordinate Fondness for Beetles by Adelheid Fischer; Perspectives: The Biomimicry Revolution by Henry Dicks and Randall Anway; a portfolio: Somos Agua by Carlos Mora; The Nature of Technology (W. Brian Arthur) reviewed by Norbert Hoeller and Richard James MacCowan.