Trevor is a Ph.D. student and research assistant in the LCA investigating human hunters’ role in the Ice Age extinction of North and South American megafauna. He does this by examining ancient humans’ butchery marks ancient humans left on megafauna fossils, including mammoths, mastodons, and giant ground sloths. This project uses high-resolution optical profilometry, geometric morphometrics, and Bayesian statistics to relate the shape of archaeological bone markings created by unknown agents to the shape of marks created during experimental trials. These include human butchery, carnivore feeding, and ungulate trampling. This research helps archaeologists identify when past humans hunted and butchered large mammals in the archaeological record.