Just before the end of the year, Southern Resident killer whales welcomed a new addition to their struggling population.

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

That was the word last night from two of the researchers who have seen the calf up close, Mark Sears and Maya Sears, the West ...

A new orca calf was spotted in Puget Sound on Tuesday afternoon, which is the first calf born into the K pod in over three ...

The first documented case of cooperative hunting between killer whales and dolphins has been observed in the waters off ...

A new orca calf is believed to have been born into one of the three critically endangered southern resident killer whale pods ...

Killer whales or orca (Orcinus orca) have been observed hunting with Pacific white-sided dolphins (Lagenorhynchus obliquidens ...

Killer whales team up with dolphins to hunt salmon, reveals new research. The apex predators, also known as orca, have been ...

Whale watchers in Madeira captured the astonishing moment orcas took down the deep-diving marine mammal. The predatory behavior had never been documented in the region.

Killer whales and dolphins, typically a predator-prey pair, have been observed cooperating to hunt salmon. This is the first ...

The ocean's giants are in full-blown combat here in the Monterey Bay. A mother gray whale successfully defended her calf from a pod of killer whales Sunday. "The gray whale mom took her calf and swam ...