This book builds on recent scholarship highlighted in the edited collections,Philosophie, histoire, biologie: mélanges offerts à Jean Gayon(Merlin & Huneman, 2018)andKnowledge of Life Today(Gayon & Petit 2018/2019). While honoring the career and the thought of Jean Gayon (1949-2018), this book showcases the continued relevance of Gayon’s interdisciplinary work and illustrates his central place in the community of historians and philosophers of the life sciences.Chapters in this book address Jean Gayon’s intellectual trajectory from historical epistemology to the philosophy of biology,...