Pic 3 (IMAGE) University of the Witwatersrand Caption A Weddel Seal (Leptonychotes weddellii), a large and abundant seal species, is seen sunbathing in Antarctica. Antarctica hosts a diversity of organisms, which may be sensitive to even passing disturbance. Credit Steven Chown Usage Restrictions None 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.