In February 2016, hunters from Sanikiluaq, Nunavut spotted two killer whales prowling around a group of beluga whales in southeast Hudson Bay. It was an unusual sight for the time of year—killer whales don't usually show up there until the summer, and are rare even then. In June, residents of the Inuit community spotted two other killer whales. By July, all four killer whales were dead. Trapped in the bay by thick sea ice, they starved to death.