Blue-colored red king crabs are found 'once in a blue moon.' Crab fisherman Frank McFarland, left, holds up a rare blue-colored red king crab he caught in his commercial crabbing pots as Frank ...

A boat captain leading a group of high school students caught a giant blue crab in the Chesapeake Bay. The male crab appeared to measure between 16 and 18 inches claw-to-claw, although an exact ...