title: Gaia and the evolution of machines.
authors.affiliation: Boston University, USA.
authors.forename: D
authors.initials: D
authors.lastname: Sagan
authors.forename: L
authors.initials: L
authors.lastname: Margulis
mesh_terms: D001331:Automation; D005075:Biological Evolution; D018534:Earth, Planet; D017753:Ecosystem; D012371:Robotics; D013672:Technology