Researchers observed how transient killer whales (orcas) in Monterey Bay, California spent their time through 270 hours of behavioral observations. Foraging accounted for 84.16% of the time spent by ...

Scientists confirmed that West Coast transient killer whales actually form two separate groups split between inner and outer coastal habitats. Inner-coast whales hunt smaller prey in shallow, ...

Inner coast transient killer whale hunting close to a Steller sea lion haulout off the outer coast of Washington. New research has confirmed that West Coast transient killer whales who live between ...

ALASKA -- An orca that became stranded on a rocky beach in Prince of Wales Island, Alaska, Thursday morning was freed with the help of the National Oceanic and Atmospheric Administration (NOAA) and ...

Whale watchers saw nearly 40 Bigg's killer whales in the Strait of Juan de Fuca. The transient orcas feed on marine mammals like seals and sea lions and their numbers are thriving. The Bigg's ...

Ecotypes of killer whales around Hokkaido. The red regions in the top left map show the sea areas where we can frequently see killer whales. Kyoto, Japan -- The species Orcinus orca, generally known ...

(CNN) — 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 ...