image: A University of Bristol researcher removes samples from Tito Bustillo Cave, Spain. The stalactite is painted with a red anthropomorph dated from 29,000 to 36,000 years ago. This image relates to a paper that appeared in the June 15, 2012, issue of Science, published by AAAS. The paper, by Alistair Pike at the University of Bristol in Bristol, UK, and colleagues was titled, "U-Series Dating of Paleolithic Art in 11 Caves in Spain." view more
Credit: Image courtesy of Rodrigo De Balbín Behrmann