The presentation was part of the Holiday Lecture series, presented by the AAAS Dialogue on Science, Ethics and Religion program. During the event, Fuentes and Ron Cole-Turner explored the role of cooperation and creativity in human evolution.
New findings from the Paisley Caves in Oregon suggest that a stone tool technology known as Western Stemmed projectile points overlapped with—rather than followed—the technology of the Clovis culture.
The Clovis culture, defined by its distinctive broad, fluted projectile points, is believed to have arrived in North American about 13,500 years ago. Many researchers had believed that Western Stemmed projectile points evolved directly from Clovis technology.
Researchers in Texas have discovered thousands of human artifacts in a layer of earth that lies directly beneath an assemblage of Clovis relics, expanding evidence that other cultures preceded the Clovis culture in North America. This pre-Clovis toolkit appears to be between 13,200 and 15,500 years old and it includes biface and blade technology that may have later been adapted—and improved upon—by the Clovis culture.