Panda Scent marking (IMAGE) Michigan State University Caption Pandas advertising their presence with scent marking - rubbing stinky glands against trees to broadcast information about who they are, their location, and their mating status. Credit Michigan State University Center for Systems Integration and Sustainability Usage Restrictions with credit, above 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.