It's fitting then, that the warehouse retailer is now offering one of the largest crab species in the world. Red king crab, also known as Alaskan king crab, is the largest commercially-fished crab ...

They're called the Giant Japanese Spider Crab and are known as Crabzilla! You would normally expect to see them deep in the Pacific Ocean but now you can find two of them in Birmingham.

The giant Japanese spider crab. This is the biggest crab in the world. ANDY TORBET:Their bodies can grow as big as a basketball, and their leg span, from tip to tip, can be up to 4 metres.