Fishing for Trees (image) Earth Institute at Columbia University Share Print E-Mail Caption Winching a long-dead tree from Loch Gamnha, in the Cairngorm Mountains. Scientists have found trees as old as 8,000 years preserved in cold, oxygen-poor lakebed mud. Credit Courtesy Tree Ring Lab, University of St. Andrews. Usage Restrictions Credit must be given. 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.