The largest king crab - North Pacific This is the largest king crab ever caught, weighing about 33 pounds (about 30 pounds), which is probably the heaviest crab in the world. Such a big crab is enough to feed a family of five for a week.

King crabs, also known as stone crabs or rock crabs, are crustaceans of the Stone Crab family. They are not real crabs. They are mainly distributed in cold seas. It is named because of its huge size and is known as the "King of Crabs". It is not a type of crab and should not be confused with the King Crab. Due to their large size and delicious meat, many species are widely caught for food, the most common of which is the Kamchatka stone crab. King crabs are deep-sea crabs that live at a depth of 850 meters and the water temperature is 2-5°C. The lowest water temperature that king crabs can survive is 1.4 degrees Celsius. In September 2011, scientists discovered more than 1 million giant king crabs in a mud bed basin 850 meters below the continental shelf offshore Antarctica. Scientists say the emergence of this large alien carnivore may be the first sign of an ecological catastrophe in Antarctic waters.