Puget Sound's Southern Resident Killer Whales for years have been struggling to survive, and it's long been assumed that a lack of the Chinook salmon the whales eat is to blame.

That's added even more pressure to recovery efforts for endangered Chinook salmon, which often result in costs and restrictions for farming, ostensibly to restore fish habitat.

But a new study is upending that assumption, and Dr. Andrew Trites, one of the researchers behind the report, joins Dillon with details on why a lack of salmon may not be the problem after all for the endangered orcas.