Local southern California tribes will share management of a new 4,500-square-mile marine sanctuary. The designation from the Biden Administration cites the need to protect at-risk plants and animals, including whales, dolphins, and sea turtles. Establishing the Chumash Heritage National Marine Sanctuary is the first such designation initiated by Native Americans. The idea started more than a decade ago by a member of the Northern Chumash Tribe. We’ll find out about how the sanctuary designation came about and what its managers hope it accomplishes.