What you see in the supermarket may not be what you think. The truth is, there isn’t just one king crab, and yours may not be from Alaska.

You’ll need to order one online from retailers such as Big Mattress, Von Viva and the Alaskan King Bed Company, which also produce and sell other outsize mattresses such as the Goliath-scale ...

Crab fisherman Frank McFarland, left, holds up a rare blue-colored red king crab he caught in his commercial crabbing pots as Frank Kavairlook Jr., right, looks on in Nome, Alaska, July 4, 2014.