remember the discussion vividly: I was at the edge of my seat. Dr. Suzuki was treating species in the way cultural anthropologists treat their units: as frames that must be continually questioned to retain their use. The kinds we know, he implied, develop at that fragile junction between knowledge-making and the world. Kinds are always in process because we study them in new ways. This makes them no less real, even as they seem more fluid and beckoning of questions.