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

Sarah Fortune, a marine ecologist at Dalhousie University in Nova Scotia, and her colleagues used drones and camera-equipped ...

Killer whales are known for their intelligence and power, even an inclination to sink yachts. Now, research is showing how they take down prey that few other animals can. Why it matters: The findings ...

Orcas, or killer whales, are deadly and beautiful apex predators. Hakeem Jeffries says Obamacare subsidy extension 'will pass ...

The team films something not seen before: an hours-long teaching session between adults and their young. Killer whales are one of only a handful of animals that actively teach their young, and it’s ...

A pod of orcas swam close to shore and amazed onlookers in Seattle by treating the whale watchers to the rare sight of the apex predators hunting a bird. And the unusual spectacle was all caught on ...

Scientists say dolphins and orcas have teamed up to hunt salmon off British Columbia. It’s the first time such behavior has ...

Killer whales have been caught on video breaking off pieces of seaweed to rub and groom each other, scientists announced Monday, in what they said is the first evidence of marine mammals making their ...