NPR's Ailsa Chang speaks orca researcher Deborah Giles about behavior she witnessed recently: whales wearing salmon as hats.

A killer whale was spotted balancing a salmon on its head. It’s not clear what the behavior means, but orcas were observed ...

New observations from photographers and researchers confirm that orcas are once again sporting fish as headgear ...

Orcas have apparently taken a break from sinking luxury yachts so they can focus on themselves. The animals have brought back ...