Gray whales are migrating from Arctic feeding grounds to the warm lagoons of Baja Mexico, and some have been spotted feeding in San Francisco Bay. As of May 31st, more than fifty whales have died on the West Coast of North America. Eleven whale fatalities occurred in the San Francisco Bay area, with two of those attributed to ship strikes. Accounts differ on the proportion of gray whales that die in the bay: one source reported nearly 18% die there, mostly from ship strikes, while another reported nearly 1 in 5 die there. Historically, 40% of gray whale deaths have been caused by collisions with ship propellers. Gray whales are federally protected under the Marine Mammal Protection Act. Gray whale numbers dropped by more than half in the last 10 years. Climate change is reducing the food supply of gray whales and is reshaping ocean ecosystems. A new AI thermal camera on Angel Island detects gray whale spouts up to 4 miles away, 24/7, and alerts captains in real time, according to one report.