Science & EnvironmentWhy do sharks love Willapa Bay? Northwest scientists have some ideasBy Jes Burns (OPB)Nov. 20, 2025 2 p.m.Every summer, the quiet waters of Willapa Bay in Southwest Washington become a shark superhighway.THANKS TO OUR SPONSOR:Become a Sponsor📨 Daily news in your inboxSign up today for OPB’s “First Look” – your daily guide to the most important news and culture stories from around the Northwest.EmailPlease leave this field blankSign up