http://stream.publicbroadcasting.net/production/mp3/kplu/local-kplu-675806.mp3
In some ways, the Puget Sound's orca whales are very familiar. We've even given them individual names. But there's still a lot we don't know, like where the whales go and what they eat.
Now that they're listed as endangered, those have become important questions. KPLU environment reporter Liam Moriarty accompanied a research crew trying to get answers.