Seafood is one of those foods that can be both fancy and comforting at the same time. It’s the star of a date-night dinner, but also the item you throw in a pan on a Tuesday for no reason.
U.S. seafood demand has increased by 30% over the past 30 years, driven by shifting consumer tastes, growing health awareness, and evolving global supply chains. Americans consume an average of 20.5 pounds of seafood per capita, as reported by the USDA.
For most of us, seafood has long been a part of the table, yet the facts and tales behind it are more surprisingly outrageous than one might expect. There’s more going on beneath the surface than most tend to know.
Lobsters used to be considered “poor people’s food”
Many years ago, lobster was far from a delicacy; it was practically prison food. Lobsters were so abundant in New England during the 1700s that they would wash up on shore in massive piles after storms. As a result, they were regularly fed to prisoners, servants, and even animals.
Fast forward to the 20th century, demand rose as railroads delivered lobster inland, and its reputation shifted completely. Now it’s one of the priciest items on a menu, with the average U.S. lobster dish selling for around $50 in restaurants.
Oysters used to clean New York Harbor
Hard to imagine nowadays, but New York Harbor was once filled with billions of oysters. In the 1800s, oysters were so plentiful that they filtered the entire harbor every three days, keeping the water surprisingly clean. They were also being peddled everywhere; oyster carts were basically the hot dog vendors of the time.
Pollution and over-harvesting eventually devastated the oyster beds. These days, initiatives like the Billion Oyster Project are attempting to bring them back, to restore one billion oysters by 2035.
Seaweed is more than just sushi wrapping
Although most people identify it as being the wrap for sushi rolls, it is actually a substantial global business. Seaweed is used in cosmetics, medicines, fertilizers, and even as a thickener in ice cream.
The UN’s Food and Agriculture Organization estimates that global seaweed production has exceeded 35 million tons annually. It’s even being studied as a sustainable food source to reduce carbon emissions.
Shrimp is America’s favorite seafood
When it comes to U.S. seafood, there’s no doubting that shrimp is the star. Americans eat approximately 5.5 pounds of shrimp per capita per year, according to SeafoodSource, making it the most consumed seafood in the country.
Part of the appeal is that it’s so versatile; shrimp can be grilled, fried, combined with pasta, or even served cold with cocktail sauce. It’s also not as pricey as other shellfish, making it a mainstay on the dinner plate. So Forrest Gump’s fixation on shrimp wasn’t far off from reality.
Swordfish lose their scales as they grow
Baby swordfish are born with scales, but as they grow up, they lose all of them. Swordfish are completely scaleless as adults, which is why they have that smooth, streamlined look.
That helps them swim at high speeds, with a top speed of 60 miles per hour. Their pointed, long bills aren’t just for show, either; they use them to slash their way through schools of fish. It’s one of the most amazing metamorphoses in the ocean.
Sushi didn’t always include raw fish
When we think of sushi today, we instantly picture thin slices of raw tuna or salmon over rice. Long ago, along rivers in parts of Southeast Asia, such as the Mekong River basin, people developed an ingenious method to preserve freshwater fish.
They’d gut and salt the fish, then pack it in cooked rice, which would ferment and create an acidic environment that prevented bacteria from developing. The process allowed fish to be preserved for months without refrigeration, and the rice was initially considered a waste product.
The version we know, raw fish on vinegared rice, did not appear in Japan until the 1800s. It became popular as a form of fast food in Tokyo, which is almost ironic considering what prices sushi can fetch nowadays.
Clams can live for centuries
We typically think of clams as something you steam for dinner, but some live very long lives. The longest-lived clam yet discovered, which has been named “Ming,” was found off the coast of Iceland and was estimated to be 507 years old. Scientists examine the long-lived clams to learn more about aging and the history of climate change.
They have accumulated centuries of data about ocean conditions in their shells. So the next time you’re eating clam chowder, just know that you might be eating something that has a history older than your entire family history.
The world’s most expensive fish sold for millions
Every January in Tokyo, the Tsukiji fish market (now Toyosu) hosts a famous tuna auction. On Jan. 5, 2019, during the first New Year’s auction at Tokyo’s Toyosu Market (the successor to the iconic Tsukiji Market), a 613-pound Pacific bluefin tuna sold for a record 333.6 million yen, or about 3.1 million USD.
Bluefin tuna is so highly prized for sushi that it’s now one of the ocean’s most endangered species because of overfishing. Demand continues to drive prices higher, particularly for high-quality fish from Japanese waters. It’s a reminder that seafood isn’t just dinner, but a worldwide luxury market.
Crabs can actually communicate with their claws
Crabs may seem to be merely scuttling along, but they are rather communicative. Most wave their claws in specific patterns to signal aggression, court a mate, or threaten a rival. The male fiddler crab, for example, has a large claw that it waves like a flag to attract attention.
Scientists have even studied these signals to discover how crab “languages” differ from species to species. So, when you next see crabs waving, they might be discussing you behind your back.
Mussels are natural water filters
Mussels are not glamorous, but they’re eco-superheroes. According to studies by the EPA, a single adult mussel can actually filter up to 15 gallons of water a day, separating algae, bacteria, and microplastics in the process.
This makes mussel beds essential to maintaining a balanced aquatic ecosystem. There are even pilot programs in some cities that use mussels to filter polluted rivers naturally. Not bad for a seafood dinner that often comes dripping in garlic butter.
Octopuses are escape artists
Octopuses have been referred to as the Houdinis of the sea, and with good reason. Their soft, boneless bodies can squeeze through openings as small as a coin. There have been many instances of octopuses in aquariums breaking out of tanks, crawling across the floor, and climbing into other tanks to hunt for food.
They’re even quite intelligent, capable of solving puzzles and remembering solutions. No wonder scientists sometimes refer to them as “aliens of the deep.”
Salmon isn’t always naturally pink
When you buy salmon at the store, the pink flesh appears completely ordinary, but it’s not always natural. Wild salmon get their color by eating krill and shrimp that contain carotenoids, a Global Salmon Initiative report explains.
Farmed salmon, by contrast, would be a dull gray without supplements. To meet consumer expectations, fish farms supplement the diet of the salmon with natural or artificial carotenoids to achieve that familiar pink color. It’s one of those small facts in the food industry that nobody pays attention to.
The pufferfish is deadly, but still eaten
Pufferfish, also known as fugu, is one of the most toxic foods in the world. It contains tetrodotoxin in its organs, a poison 1,200 times more lethal than cyanide. It is, nevertheless, a Japanese delicacy, and chefs spend years training to master the art of preparing it safely.
Despite the training, isolated cases of poisoning still occur, although much fewer than previously. It’s a testament to the fact that people will go to great lengths for unique flavors.
Seafood fraud is surprisingly common
Here’s one somewhat unsettling fact: Yes, fraud. The seafood you purchase might not be what you think it is. Reports by organizations like Oceana have concluded that about 1 in 5 seafood samples they tested worldwide were mislabeled.
For example, cheaper fish is sometimes mislabeled as more expensive types, and misleadingly labeled imports can circumvent sustainability laws. It often occurs in supermarkets and sushi bars. It’s a reminder to buy from reputable sources if you want the real thing.
Fish really do sleep
It’s hard to imagine fish sleeping since they don’t have eyelids, but they certainly do. Most become less active at night, hovering in place or snuggling into coral for protection. Some even exhibit brain patterns similar to those of REM sleep.
Scientists continue to study how fish’s sleep cycles mirror our own, but they certainly need rest, just like every other animal. Next time your goldfish looks zoned out, maybe don’t tap the glass; they’re probably sleeping.
Key takeaways
Seafood’s history is full of surprises. Lobster was once considered “poor man’s food,” oysters once cleaned New York Harbor, and sushi originated as a form of preservation before it became haute cuisine.
Marine life plays hidden environmental roles. Mussels filter pollution, seaweed supports industries from food to pharmaceuticals, and clams can open centuries of climate information.
Some seafood facts are stranger than fiction. Octopuses can fit through tiny openings, swordfish lose their scales as they grow, and salmon’s red color is typically farmed rather than natural.
Seafood can be risky, rare, or even deceptive. Pufferfish is deadly but eaten, bluefin tuna fetches millions, and seafood fraud can make what’s on your plate not what you’re paying for.
Disclaimer – This list is solely the author’s opinion based on research and publicly available information. It is not intended to be professional advice.
16 Grocery Staples to Stock Up On Before Prices Spike Again
16 Grocery Staples to Stock Up On Before Prices Spike Again
I was in the grocery store the other day, and it hit me—I’m buying the exact same things I always do, but my bill just keeps getting higher. Like, I swear I just blinked, and suddenly eggs are a luxury item. What’s going on?
Inflation, supply-chain delays, and erratic weather conditions have modestly (or, let’s face it, dramatically) pushed the prices of staples ever higher. The USDA reports that food prices climbed an additional 2.9% year over year in May 2025—and that’s after the inflation storm of 2022–2023.
So, if you’ve got room in a pantry, freezer, or even a couple of extra shelves, now might be a good moment to stock up on these staple groceries—before the prices rise later.
6 Gas Station Chains With Food So Good It’s Worth Driving Out Of Your Way For
6 Gas Station Chains With Food So Good It’s Worth Driving Out Of Your Way For
We scoured the Internet to see what people had to say about gas station food. If you think the only things available are wrinkled hot dogs of indeterminate age and day-glow slushies, we’ve got great, tasty news for you. Whether it ends up being part of a regular routine or your only resource on a long car trip, we have the food info you need.
Let’s look at 6 gas stations that folks can’t get enough of and see what they have for you to eat.
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