
Top 10: What are the biggest crustaceans?
You'd struggle to stick even one of these shrimp on the barbie!
Japanese spider crab

Leg span: 4m
Distribution: Pacific Ocean around southern Japan
American lobster

Length: 1m
Distribution: Atlantic Ocean around North America
Coconut crab

Leg span: 1m
Distribution: Indian Ocean and Central Pacific Ocean
Tasmanian monster crab

Leg span: 80cm
Distribution: Oceans off southern Australia
Tasmanian giant freshwater crayfish

Distribution: Rivers and streams in Tasmania
Zebra mantis shrimp

Length: 40cm
Distribution: Indo-Pacific region
Alicella gigantea

Length: 34cm
Distribution: Kermadec Trench, New Zealand
Giant tiger prawn

Length: 33cm
Distribution: Indian Ocean and West Pacific
Giant acorn barnacle

Length: 30cm
Distribution: Coast of northwest America
Euphausiid (krill)

Length: 15cm
Distribution: Antarctic Ocean
Subscribe to BBC Focus magazine for fascinating new Q&As every month and follow @sciencefocusQA on Twitter for your daily dose of fun science facts.
Subscription offer
Subscribe and try your first 3 issues for just £5. After your introductory period you will pay just £22.99 every 6 issues by Direct Debit. Receive every issue delivered direct to your door with FREE UK delivery.