Ge Yun is a PHD student at the University of California, Riverside. He earned his M.A. from the Graduate School of the Chinese Academy of Social Sciences. His research focuses primarily on the collapse of Teotihuacan and the fires produced before the city was abandoned. Thus, the main method he implements is the study of the botanical species represented in the charcoal excavated at the Plaza of the Columns Complex (specially the fuel used before the abandonment) to reconstruct the site’s abandonment process.

Robin is a molecular anthropology PhD candidate studying at the University of Oklahoma, specializing in ancient DNA. Her particular focus is on exploring the relationships between humans and animals throughout history, using paleogenomics and other molecular techniques to understand how these interactions have shaped–and continue to shape—societies. Most of her work is in regions with very poor biomolecule preservation. She explores how to maximize recoverable data from poorly preserved samples and how to use this limited data in informative ways.