Collecting Coconut DNA (IMAGE) Washington University in St. Louis Caption On the way to sample new leaf tissue from the crown a of coconut tree, an intrepid climber with a knife in his teeth grins at Bee Gunn, the scientist on the beach beneath him. Credit Bee Gunn while doing research funded by the National Geographic Society Usage Restrictions Please credit as shown 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.