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

"We were sailing at night." Scary moment as 30 killer whales attack family's yacht: 'Suddenly, we felt our boat moving' first ...

The mother orca known as J35, or Tahlequah, has been seen carrying her deceased calf for at least 11 days, drawing attention ...

A pod of Pacific white-sided dolphins off the coast of British Columbia have been observed cooperating with orcas, a traditional enemy that’s better known for taking out great white sharks than ...

With all the splashing, it was hard to tell what was happening under water. As the orcas surfaced to take a breath, dolphins were darting around their heads, but the water was so murky that the ...