scan of carved bone (in grey) (IMAGE) University of Göttingen Caption microCT scan of carved bone with marking of the notches. Marked in red are the six notches that create the angular pattern, marked in blue are accompanying notches. Credit Graphik: A. Tröller-Reimer/D. Leder, © NLD Usage Restrictions None License Licensed content 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.