​This cognitive ethnography examines how scientists create meaning about biological phenomena through experimental practices in the laboratory, offering a frontline perspective on how new insights come to life. An exercise in the anthropology of knowledge, this story follows a community of biologists in Western Norway in their quest to build a novel experimental system for research on Lepeoptheirus salmonis, a parasite that has become a major pest in salmon aquaculture. The book offers a window on the making of this material culture of science, and how biological phenomena...