Are Shrimps Fish

Okay, friend. Let’s talk about something that has haunted dinner tables and cocktail parties for centuries. The big one. The question that keeps marine biologists up at night (or, more likely, makes them roll their eyes). Are shrimps fish?

I once asked this at a family barbecue, and the debate got so heated we almost forgot to eat the actual shrimp. My uncle, a man who once argued that ketchup is a vegetable, swore they were literally the same thing. “They swim, don’t they?” he said, waving a forkful of scampi. And look, I get it. They live in water. They have a vaguely fish-like shape if you squint after three glasses of wine. But, oh boy, the truth is much weirder—and kind of hilarious.

Here’s the deal: Shrimps are not fish. Not even close. Fish are vertebrates—they have a spine, a skeleton made of bone or cartilage. Think salmon, think goldfish, think Nemo. Shrimps, on the other hand, are invertebrates. They’re crustaceans, part of the same arthropod family as crabs, lobsters, and—wait for it—bugs. Yes. Your delicious garlic butter shrimp is basically the sea’s version of a grasshopper. (Don’t look at me like that; you knew this was coming.)

If we want to get technical (and let’s, because it’s fun), shrimps belong to the order Decapoda, meaning “ten legs.” Fish have fins. Shrimps have swimmerets and a tail fan. Fish breathe through gills hidden inside their heads. Shrimps have gills too, but they’re attached to their legs. It’s like if you had lungs in your kneecaps. Evolution is a mad scientist.

So why does everyone confuse them? Partly because language is a hot mess. In cooking, we say “shrimp” or “prawn” for the animal and “fish” for... well, also the animal. But in biology, calling a shrimp a fish is like calling a bat a bird. Sure, they both fly, but one has fur and the other has feathers and a very bad attitude about being called a mouse. Similarly, a shrimp has a segmented body, an exoskeleton, and compound eyes that taste like a kaleidoscope of weird. And they molt—just shed their entire skeleton and grow a new one. Imagine doing that. I can barely manage to buy a new winter coat.

Are Shrimp Fish?

Also, fun fact: there’s a famous rhyme—“Big fish eat little fish, little fish eat shrimp, shrimp eat mud”—which, while catchy, is biologically slander. Shrimps eat algae, plankton, and dead stuff. They are the oceans’ tiny vacuum cleaners. They do not eat mud. That’s a myth. Unless you count a very messy dinner party.

So, next time someone at a party confidently declares “Shrimp are fish,” you have two choices. You can launch into this whole lecture and watch their eyes glaze over. Or you can nod, smile, and whisper, “Technically, they’re ocean-roaming, ten-legged, spine-less wonders.” And then steal the last shrimp off their plate. It’s what nature intended.

Is Shrimp a Fish? Know the Difference! - Aquarium Whisperer

Here’s the uplifting bit, friend. In a world full of labels and rigid categories, shrimps remind us that it’s okay to be unclassifiable. They can’t decide if they’re seafood or a backyard bug. They have no skeleton, no dignity, and they turn pink when you cook them. And yet? We love them. We dip them in cocktail sauce. We toss them in pasta. We toss them on the grill. They are flexible—in body and in spirit.

So go ahead. Call them a fish if it makes you happy. Call them a sea-bug. Call them a tiny, delicious ambassador from the deep. They don’t care. They’re too busy shedding their skin and doing their little shrimp dance. And honestly, in a world that wants us to pick a box and stay there, maybe the real lesson is this: It’s okay to be a little bit shrimp. Squishy, adaptable, and full of unexpected joy. Now pass the butter.