Killer Whale Stalks a Weddell Seal (image) NOAA National Marine Fisheries Service Caption A Killer Whale circles an ice floe with a resting Weddell seal off the western Antarctic Peninsula. Researchers found the killer whales hunting in pack ice (pack ice killer whales) preferred Weddell seals to all other available prey. Credit Robert Pitman/NOAA Usage Restrictions Attribute to Robert Pitman 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.