Geoduck farms are spreading around the coastal Northwest. The geoduck, the largest clam in North America (and pronounced GOO-ee-duck), is a bivalve with a three-foot neck. They can live to be more than 150 years old.

For years, divers have harvested the delicacies from the salt waters of Washington, Alaska and British Columbia. Now -- like oysters and other shellfish -- they're being farmed by entrepreneurs.

After a visit to a farming operation, Austin Jenkins from Olympia, Wash., reports.

Copyright 2022 NPR. To see more, visit https://www.npr.org.