California has reported its first cases of highly pathogenic avian influenza in northern elephant seals, with several seals at Año Nuevo State Park testing positive. The outbreak has prompted officials to close popular viewing areas and cancel public tours due to the alarming number of animal illnesses and deaths. Researchers are concerned as this marks the first detection of bird flu in marine mammals in the region. Affected facilities have halted all tours to ensure public safety and monitor the situation closely.