Brian Kemp, Washington State University (image) Washington State University Share Print E-Mail Caption Washington State University molecular anthropologist Brian Kemp examines a tooth from Naia, an adolescent girl who fell into a Yucatan sinkhole some 12,000 years ago. Kemp led genetics work on the girl that is helping illuminate the origins of the first people to inhabit the Americas. Credit James Chatters Usage Restrictions Please credit. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.