This thrilling episode introduces bi-directional sex-changing fish, gay math, how to set up your own queer ecology experiment and the story of Etienne the white man who ruined the nation. This episode is sponsored by Dr. Martin Bunzl and his new book " Thinking While Walking: Reflections on the Pacific Crest Trail " available here -https://www.amazon.com/gp/product/B0949J8939/ref=dbs_a_def_rwt_hsch_vapi_taft_p1_i0