Orcas in Alaska are stealing fish right from the lines — and the new behavior seems to be killing them

• A federal agency said more orcas are getting caught in fishing gear in Alaska and dying.
• Thieving orca in the area have been picking fish off trawlers' lines for decades.
• But they have started lingering by boats more, a "new behavior" that may put them at more risk.

Orcas in Alaska are exhibiting a "new behavior" that may be getting them in trouble, a local fisher's association has said.