Orcas, or killer whales, also adopted a bizarre behavior ... on orca populations that depend on salmon as a primary food source. It’s possible that the salmon hat fad of the 1980s was a goofy ...

the whales' main food source, saying: "The Southern Resident killer whale population needs ample access to their food supply, mainly salmon, to survive and thrive. "Every single birth counts and ...

SEATTLE — The recent death of a J pod orca calf highlights the plight of the Southern Resident killer whales ... Chinook are the primary food source for Southern Residents, and the salmon ...