Pregnant female elephant seal (IMAGE) University of California - Santa Cruz Caption A pregnant female elephant seal arrives on the beach at Año Nuevo Reserve to give birth after seven months at sea. The reproductive success of female elephant seals depends on their ability to find prey and put on weight during their months-long foraging migrations. Credit Photo by Dan Costa Usage Restrictions For use only with news coverage of this research 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.