San Francisco turns to AI to avoid collisions between ships and whale

Gray whales have long migrated along the California coast on their roughly 12,000-mile (19,300-kilometer) journey between breeding lagoons in Mexico and feeding grounds in the Arctic. But instead of simply passing offshore, increasing numbers are now diverting into San Francisco Bay and lingering for days or even weeks inside the crowded estuary — a shift scientists increasingly link to climate change. Last year, 21 dead gray whales were found in the wider Bay Area — the highest number in 25 years, according to The Marine Mammal Center — with at least 40% killed by ship strikes.