Shrimp and prawns have different anatomies. Prawns have branching gills, claws on three pairs of their legs and second pincers that are larger than their front ones. … Shrimp, on the other hand, have lamellar (or plate-like) gills, and claws on two pairs of their legs. Their front pincers are typically their largest. Prawns and Shrimps are easily inter-changeable for recipes however. Choose what you prefer or have available.