Rikke Reisner Hansen takes a rest (IMAGE) Aarhus University Caption Rikke Reisner Hansen is having a rest on the heath in her hunt for ant mounds to examine. She's a biologist by training og started her career in Greenland where she tried to figure out how climate change affects the insects. Now she's focused on the nature of Danmark and especially the different species of ants. Credit Rikke Reisner Hansen (private photo) Usage Restrictions May only be used in relation to this story. License Original 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.