The blue whale's diet consists of krill ... a group that includes humpback whales and gray whales, among others. Orca whales (killer whales) have been known to kill blue whales, even though ...

Over the weekend, a 38-foot-long female gray whale washed ashore at Dockweiler State Beach, prompting an outpouring of grief from marine mammal lovers and leaving an important question etched into ...