Biologists discovered killer whales and dolphins working together to hunt salmon, a behavior never before documented in this ...

Cetaceans are among the most intelligent creatures in the ocean and many whales have used their big brains to develop cunning ...

SeaWorld's beloved Katina has died. The water park has released the cause of death for the killer whale, who was believed to ...

A well-known male killer whale was spotted June 9 traveling alone through Yaquina Bay and along the central Oregon coast, drawing attention from researchers, photographers and onlookers as he hunted ...

The species Orcinus orca, generally known as orcas or killer whales, is made up of many genetically distinct populations ...