Migration Route (image) NOAA Fisheries West Coast Region Share Print E-Mail Caption A killer whale tagged near the Antarctic Peninsula migrated north into warmer waters and then returned to the same area, all within 39 days. Colors reflect sea surface temperatures, with orange and red the warmest. Credit NOAA Fisheries/Marine Mammal Science Usage Restrictions CREDIT: NOAA Fisheries/Marine Mammal Science 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.