Polar Bear with Adult Hooded Seal (IMAGE) Aarhus University Caption This is a polar bear with an adult hooded seal, which make up an increasing share of their food. The hooded seal can weigh up to 300-400 kg, so it is a large prey for the approximately 500 kg heavy polar bear. Credit Rune Dietz, Aarhus University 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.