Prawns vs. Shrimps: Key Differences You Need to Know
Prawns and shrimps are both small, edible crustaceans, but prawns belong primarily to the suborder Dendrobranchiata, while shrimps fall under Pleocyemata—meaning they’re biologically distinct species, not just interchangeable names for the same creature.
At the seafood counter, “shrimp” dominates American menus, while “prawn” stars in British and Australian recipes. Overlapping sizes, similar taste, and loose labeling let supermarkets swap the names, so shoppers rarely spot the real divide.
Key Differences
Prawns have branching gills, longer legs with claws on three pairs, and straighter bodies. Shrimps carry plate-like gills, claws on only two leg pairs, and a sharp body bend. These subtle anatomy cues separate them long before they hit the pan.
Which One Should You Choose?
Flavor is nearly identical; texture differs slightly—prawns feel firmer after cooking. Choose prawns for bold curries or grilling, shrimps for quick stir-fries and pasta. Price, not biology, usually drives the decision at your local market.
Examples and Daily Life
In the UK, a pub “prawn cocktail” is classic, while U.S. diners order “shrimp scampi.” Aussie barbecues feature “king prawns,” but the same species labeled “jumbo shrimp” appears in American grocers—proof marketing trumps taxonomy.
Can you substitute one for the other in recipes?
Absolutely. Their flavor and cook time are so alike that no adjustment is needed beyond accounting for size.
Are prawns always bigger than shrimps?
Not always. Some shrimp species outgrow small prawns; marketing labels like “jumbo” or “large” blur the size line further.
Is the nutrition profile identical?
Yes—both deliver lean protein, iodine, and omega-3s. Any variance is too small to sway a healthy diet.