When we think of science, iconic figures like Bill Nye or George Washington Carver often come to mind, their contributions to the field leaving a lasting impression. But for many in the Lexington community, particularly those who passed through the halls of Lexington Senior High School, the face of biology is synonymous with Kristi Kirkendall Thornhill. She is not just a teacher; she is an inspiration who brought the subject to life in a way that resonated deeply with her students.