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

The species Orcinus orca, generally known as orcas or killer whales, is made up of many genetically distinct populations ...

Learn how differences in diet and behavior split orcas off northern Japan into resident and transient groups — and what their ...

Off the coast of British Columbia, dolphins lead killer whales to salmon and earn their share of lunch, a new study reveals.

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

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

Killer whales have been caught on camera hunting down and eating great white sharks alive. A shark-hunting pod of orcas was seen flipping their rival apex predators upside-down to paralyze them - ...

Videos show a rare instance of a pod of killer whales attacking and attempting to devour two adult gray whales in Monterey Bay, California.

Killer whales have been caught on camera hunting down and eating great white sharks alive. A shark-hunting pod of orcas was seen flipping their rival apex predators upside-down to paralyze them - ...