Dr. Gregory Crocetti worked for a decade as a microbial ecologist at the Universities of QLD and NSW – exploring bacteria from a range of environments, including mouse intestines, sponges, seaweed and sewage. On moving to Melbourne in 2007, Gregory shifted from science research to science education, working with CSIRO Education for several years and briefly with Friends of the Earth’s Emerging Technologies Project. Gregory also began a collaboration with artists Briony Barr and Jacqui Smith in the art-science collective, Scale Free Network. In this capacity, Gregory has developed and delivered a range of art-science projects, combining microscopes with drawing, molecules with sculpture and more. Gregory now co-authors and publishes the Small Friends book series – stories about symbiotic partnerships between microorganisms and larger forms of life.