Endangered killer whales received new habitat protections from the U.S. government Friday. The National Marine Fisheries Service finalized rules to expand the Southern Resident orca’s critical habitat from the Canadian border down to Point Sur, California, adding 15,910 square miles (41,207 square kilometers) of foraging areas, river mouths and migratory pathways.

But a new paper from Hanson and others at the NOAA Fisheries Northwest Fisheries Science Center provides the first real look at what the whales eat the rest of the year, when they cruise the outer Pacific Coast — data that reaffirms the central importance of Chinook to the whales and the importance of recovering Chinook populations to save the beloved mammals.

A KING 5 investigation reveals the cost of Seattle’s cheap electricity, and the price is salmon, orcas and a way of life for Native American tribes.