ALT Screenshot of an article title (“Introduction: Medieval Trans Natures”), byline (Aylin Malcolm and Nat Rivkin), and epigraph: In omnibus enim rebus naturalibus mirabilia est speculari. For there are wonders to be found in all natural things. Albertus Magnus, On Animals.

ALT Acknowledgements footnote: This issue began to take shape in early 2021, and we owe much to those who have helped it come into being over the last three and a half years. We thank our contributors for believing in the project and putting in considerable effort with their articles. We are honored to feature work by a group of brilliant and boundary-pushing junior scholars, and we look forward to continuing to engage with their ideas in future. In addition, we are profoundly grateful to the twelve anonymous reviewers who brought their expertise to bear on these articles. It was a true pleasure to work with these scholars, each of whom offered incisive and generous comments that helped this issue become much more polished. Thanks are also due to the mentors who offered advice during the initial planning phases, including Abdulhamit Arvas, Simone Chess, Holly Dugan, Heide Estes, Will Fisher, Colby Gordon, Kathleen E. Kennedy, Vin Nardizzi, and Melissa E. Sanchez. More recently, we have ben