An endangered killer whale in the Pacific Northwest was spotted wearing a dead salmon like a hat, reviving a bizarre ...

Orcas have spent the past few years rewriting their public image from charismatic performers to unpredictable disruptors, ...

New footage shows orcas and dolphins coordinating hunts, hinting at interspecies teamwork to track and catch salmon off ...

From sinking boats and feasting on shark livers to dining on whale tongue and tossing porpoises around for fun, orcas are ...