Many of us are aware that planting legumes helps enrich soils but how do they do this? By partnering with bacteria, of course! My guest today studies how this mutualistic relationship evolved and how it is maintained throughout various lineages. Dr. Katy Heath is a plant person at heart and she brings that passion with her to her lab as she tries to understand these evolutionary processes. Join us for a fascinating discussion about this system. This episode was produced in part by Allan, Clifton, Katherina, Shane, Amy, Caitlin, Rosanna, Mary Jane, Manuel, Jennifer, Sara, Christopher, Sienna and Garth, Margie, Laura, and Mark.