Elephant Seal with GPS Tag (image) University of California - Santa Cruz Share Print E-Mail Caption Researchers have developed increasingly sophisticated tags for tracking the movements and diving behavior of migrating elephant seals. Tags are attached harmlessly onto the animals' fur and recovered when they return to the rookery. Credit Dan Costa Usage Restrictions For use only with news coverage of this research. 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.