Abstract This paper is a close textual criticism of Theodosius Dobzhansky's Genetics and the Origin of Species. It argues that the book succeeds as interdisciplinary communication by promoting polysemy. The professional goals of two scientific communities are embedded in the text in such a way that each audience reads the call for co?operative action as implicit support for their own methods.

ABSTRACT Anthony Fauci, an infectious disease expert in the White House's coronavirus task force, is challenged to offer responsible public communication of science despite working under a habitual liar who has no tolerance for criticism or dissent. Fauci manages this rhetorical exigence by using strategic ambiguity, the topos of the honest broker, dissociation, and a narrative that constrains executive decision making.