March 28, 2008, "Tracing our prehistoric ancestors the DNA way: An anthropological adventure", Daytona Beach Community College

February 6, 2008, "Tracing our prehistoric ancestors the DNA way: An anthropological adventure", Florida Community College at Jacksonville, North Campus, Opening speaker for yearlong Darwin Day Celebration

Dec 13, 2007, "Reconstructing human migrations: Projects from the Americas and from Africa", University of Florida Whitney Lab

Oct 10, 2007, "Reconstructing human migrations: Projects from the Americas and from Africa", Harvard University, Dept of Anthropology, Archaeology Wing

Sept 12, 2007, "Reconstructing human migrations: Projects from the Americas and from Africa", University of Virgin Islands, Minority Access to Research Careers speaker

Jan 24, 2007, "Recent advances in molecular genetics, Sana'a University, Sana'a, Yemen