The difference between a shrimp and a prawn is in the claws. Prawns have 3 pairs and shrimp have 2.
When buying them fresh, bivalves should still be alive.
Farming has made shellfish available year-round.
How to tell when shellfish is fresh
There are 4,500 different species of crab on the planet
Keep fresh shellfish alive until you are ready to eat it.
Learn about sustainable seafood
Crabs and lobster are decapods - they have ten legs