From sinking boats and feasting on shark livers to dining on whale tongue and tossing porpoises around for fun, orcas are displaying some fascinating — and sometimes terrifying — behaviors. When you ...

The ocean has a definite top predator. Sharks dominate discussions, in part due to their fearsome hunting abilities, and in part due to movies like Jaws. But beneath the waves, another predator ...

Footage captures a pair of orcas nibbling each other's tongues in the Kvænangen fjords in northern Norway. Scientists think this rarely seen behavior could play a role in social bonding. When you ...

Northwest Pacific orcas have started wearing salmon hats again, bringing back a bizarre trend first described in the 1980s, researchers say. This is the first time they've donned the bizarre headgear ...

Want to experience this story in a different medium? Check out the related documentary or Science Quickly podcast episode. Like many people who visit San Juan Island, I came here for the orcas. This ...