Everything worth knowing about lobster in one place: its history, the science, how it is eaten around the world, and a few myths set straight.
Lobster was once so abundant in colonial New England that it was fed to prisoners, servants and used as fertiliser, eating it was a mark of poverty until the 1880s.
The lobster's rise from peasant food to luxury began with the railroads: dining cars served it to inland passengers who had no idea it was once considered junk.
Maine's first lobster cannery opened in 1840s; canning is what first turned a local catch into a national commodity.
By the early 20th century overharvesting near the coast pushed fishermen to invent the modern slatted lobster trap, still used today.
The lobster roll as we know it, chilled meat, mayo, split-top bun, is usually traced to Perry's in Milford, Connecticut, in the 1920s.
During WWII lobster was one of the few foods never rationed in the US, which quietly rebuilt its reputation as an affordable treat.
In the 1600s, lobster was so absurdly abundant in New England that storms washed it ashore in piles up to two feet high, and colonists dismissed it as 'the cockroach of the sea.'
Before it was a delicacy, lobster was ground up for fertiliser, chopped for fish bait, and routinely fed to pigs, animal food, not people food.
Colonial New Englanders fed cheap, plentiful lobster to prisoners, apprentices and the enslaved, it was the original poverty food.
Lobster's rise began in 1842 when the first cannery opened in Eastport, Maine, and canned lobster was the very first sealed canned food ever commercially packed in the United States.
By 1880 Maine had 23 lobster canneries employing around 800 workers, together producing 1.8 million cans a year, half of them shipped overseas.
In 1860 a four-to-five-pound lobster was considered 'small,' but by the 1880s canneries were boiling down half-pound babies until conservation laws and iced live-shipping ended the canneries by the mid-1890s.
Lobster turned fancy thanks to the railroads: dining-car porters served it to passengers who had no idea it was peasant food back home, and Gilded Age 'Lobster Palaces' in New York sealed its luxury status.
A note for skeptics: a food historian who hunted for original 17th and 18th-century records found no contemporaneous mention of New England prisoners actually being fed lobster, the famous 'prison food' story only appears in print in the 20th century.
Legend has it that indentured servants grew so sick of lobster that some had clauses limiting it to three times a week written into their contracts, a colourful claim that is widely repeated but never firmly documented.
In Acadia in 1597, English captain Charles Leigh recorded that he had never seen such a quantity of lobster anywhere as in the waters off what is now Atlantic Canada, where the Mi'kmaq had long used the crustacean as both food and fertilizer for their crops.
Lobster fishing on the German island of Helgoland is documented as far back as 1615, when chronicles report a catch of 37,000 lobsters in a single year, rising to around 50,000 by 1790.
Helgoland lobster catches peaked in 1937 at over 87,000 animals, roughly 40 tonnes a year, before wartime bombing and the 1947 demolition of the island's fortifications shattered the rocky habitat. Today only five licensed fishers remain and the annual catch has collapsed to 100 to 200 lobsters.
In Quebec's Magdalen Islands, lobster shifted from a subsistence catch to a real industry only late in the 19th century. Processing factories, known locally as factries, appeared around 1870 and the first lobster traps were set around 1875.
The European lobster, nicknamed the petit bleu de Bretagne, was prized as far back as antiquity and graced the tables of the Greeks and Romans, fell out of favour along the coasts during the Middle Ages, then regained its noble status in French gastronomy from the 17th century onward.
Magdalen Islands lobster fishers, who land about 60 percent of the value of Quebec's lobster, became the province's first certified sustainable lobster fishery in 2003.
Lobsters taste with their legs and chew with stomachs that contain a set of grinding teeth called the gastric mill.
A lobster's blood is clear, turning a faint blue when exposed to oxygen because it carries copper-based haemocyanin instead of iron.
Lobsters never stop growing and show no decline in fertility or appetite with age, biologists call this negligible senescence.
Only when cooked does a lobster turn red: heat breaks down proteins that hide the pigment astaxanthin in the raw shell.
A lobster can regrow a lost claw, leg or antenna over successive molts, a large adult may have regenerated limbs several times.
Roughly 1 in 2 million lobsters is blue, and rarer still are yellow, calico, split-coloured and albino lobsters.
Lobsters molt their entire shell to grow, hiding for weeks while the soft new shell hardens, the source of sweeter 'soft-shell' summer lobster.
Lobsters have blue blood: instead of iron-based haemoglobin, they use copper-based haemocyanin to carry oxygen, which turns their blood blue when it hits the air.
A lobster's heart sits behind its stomach and pumps blood through an open circulatory system, there are no veins, so the blood simply bathes the organs directly.
Those two mismatched claws have jobs: the big rounded 'crusher' pulverises shells while the slender 'pincher' tears softer food, and which side becomes the crusher is set early by how the young lobster uses them.
To grow, a lobster abandons its own armour: in moulting it cracks open its rigid shell, backs out, and emerges soft and vulnerable until a new, larger shell hardens beneath.
Lobsters can regrow lost claws, legs and antennae over successive moults, a clawless lobster will slowly rebuild what it lost.
Lobsters basically taste with their feet: thousands of chemoreceptors line the tiny hairs on their walking legs, letting them taste the seabed as they stroll across it.
Lobsters show 'negligible senescence', they don't visibly weaken with age, and very old lobsters keep growing and stay just as fertile as young ones, which is extraordinarily rare in the animal kingdom.
Part of the secret is telomerase: lobsters keep producing this enzyme throughout their bodies, repairing the chromosome caps that fray with age in most animals, including us.
A live lobster is mottled brown-green, not red: its red pigment is clamped inside a protein called crustacyanin, and only the heat of cooking unravels that protein to release the red.
Lobsters can't make their own red pigment, they get it entirely from their diet of algae and plankton, and the cooked-red change is permanent once the protein denatures above about 140 degrees F.
Lobsters fight and flirt by peeing in each other's faces: nozzles near the base of their antennae fire jets of pheromone-laced urine that gill currents carry several body-lengths away.
A lobster chews with its stomach: a set of grinding teeth called the gastric mill, located in the stomach just behind the eyes, breaks down its food.
South Africa's West Coast rock lobster, known locally as kreef, grows extremely slowly and can live to around 50 years of age.
The Norway lobster, the Dublin Bay prawn, the langoustine and scampi are all the very same animal, Nephrops norvegicus, a slim coral-coloured lobster reaching about 25 cm.
The clawed lobster sold across Europe as the bogavante or astice belongs to the genus Homarus, while the clawless spiny lobster sold as langosta or aragosta belongs to a different family entirely, recognisable by its long antennae and near-total lack of claws.
Japan's ise-ebi is a spiny lobster of the family Palinuridae, taxonomically distinct from the clawed true lobsters of the genus Homarus that English speakers usually picture, even though both are called lobster in translation.
In much of coastal Maine, ordering a lobster roll 'naked' (no mayo, no butter) marks you instantly as an outsider.
Lobster pounds, open-air spots where you pick your lobster from a saltwater tank, are a New England institution rarely found elsewhere.
Nova Scotia and Maine quietly compete over who lands the world's best cold-water lobster; both are correct, depending on whom you ask.
The European lobster (Homarus gammarus), darker and rarer than its American cousin, commands a premium on UK and French menus.
The New England clambake traces back over 2,000 years to coastal tribes of Maine, Massachusetts and Connecticut, who steamed clams and lobsters in sand pits using fire-heated rocks and wet seaweed.
Despite the myth, colonists didn't learn the clambake from Native Americans, they thought clams were pig food. The clambake was consciously revived after the Revolution as a homegrown symbol of American identity.
By the late 1800s the clambake had become an all-American ritual on par with Thanksgiving and the Fourth of July, fuelled by the rise of seaside leisure travel.
In French, lobster is 'homard', and the language draws a sharp line between the clawed homard of cold Atlantic waters and the clawless 'langouste' of warmer seas, two creatures English lumps together as 'lobster.'
Maine throws an entire festival in its honour: the Maine Lobster Festival in Rockland has celebrated the catch every summer since 1947, complete with a giant boiler cooking tons of lobster.
In Japan the ise-ebi spiny lobster is a New Year and wedding good-luck symbol. Its long whiskers and bent back evoke a stooped elder, so it stands for healthy long life, a wish to live until one's back curves with age.
The ise-ebi carries several meanings in Japan beyond longevity. Because it repeatedly moults and grows it signals rising in the world, its armour-like shell suggests victory, and the vivid red it turns when cooked is held to ward off evil.
Sweden's kraftskiva, or crayfish party, is one of the customs most tied to modern Swedish identity. Crayfish eating reached Sweden from the continent and is recorded since at least the 1500s, first appearing in writing in 1562 in a letter from King Erik XIV.
The August timing of the Swedish crayfish party is a legacy of conservation. From the late 1800s until 1994 crayfish fishing was banned from November until early August, so the season opened on 7 August, a date later shifted to the first Wednesday of the month.
Salvador Dali built his 1936 Lobster Telephone by perching a realistic lobster where the handset should be. For Dali lobsters and telephones both carried dreamlike connotations, and he later teased that when he ordered grilled lobster he was never served a boiled telephone.
Lobster traps in the Magdalen Islands are still built by hand in essentially the same way they were a century ago, even as stronger modern materials have become available.
Soft-shell (new-shell) lobster, common from July, holds less meat but many locals prize it as sweeter and easier to crack by hand.
Hard-shell lobster ships and stores better and packs more meat per pound, which is why winter lobster often costs more.
The green 'tomalley' is the lobster's liver and pancreas, a delicacy to some, though advisories suggest eating it sparingly.
A lobster roll comes two ways: Maine-style (cold, with mayo) and Connecticut-style (warm, with drawn butter), the rivalry is genuine.
Tail meat is firmer and prized for presentation; claw and knuckle meat is softer and sweeter, favoured for rolls and salads.
Whole lobster is almost always sold at market price because supply swings with the molt cycle, weather and season.
The great American debate: a Maine lobster roll is served cold with the meat lightly bound in mayo and lemon, while a Connecticut roll is served warm and drenched in melted butter.
The warm, buttery Connecticut roll has a birthplace, most sources credit Perry's restaurant in Milford, Connecticut, in the 1920s.
The cold mayo-dressed roll is the older of the two, a recipe for cold lobster rolls appeared in print as early as 1829, well before the buttered version.
Name recognition wins lunch: the Maine-style roll outsells the Connecticut-style roughly three to one nationally, even though butter loyalists insist their version is superior.
Lobster Thermidor, lobster meat in a rich brandy-and-egg-yolk cream sauce piped back into the shell and browned under cheese, was reportedly created in Paris in 1891 to celebrate the debut of a play called 'Thermidor.'
Homard a l'Americaine, lobster in a tomato, white wine and garlic sauce, was supposedly created around 1860 by a French chef who had cooked in the US, hence the puzzling 'American' name on a very French dish.
The French dish homard a l'americaine is widely traced to around 1860 and chef Pierre Fraysse, a native of Sete. In 1921 the food critic Curnonsky pushed the alternative spelling a l'armoricaine, tying it to ancient Armorica, and the two names have been argued over ever since.
In Sardinia, aragosta alla catalana is a signature dish of Alghero, a town with Catalan roots. Boiled spiny lobster is sliced into rounds and dressed simply with an emulsion of olive oil, lemon juice and chopped parsley.
Italian cooks distinguish the two crustaceans by use. The clawed astice has firm, savoury flesh suited to pasta and seafood salads, while the sweet, delicate clawless aragosta from the waters around Sardinia, Sicily and Corsica is treated as a luxury in its own right.
In Spanish kitchens the brawnier, claw-bearing bogavante is the classic for arroz caldoso, a soupy rice, while the finer-fleshed clawless langosta is traditionally turned into caldereta.
Connoisseurs prize the European or Breton blue lobster for its firm, dense flesh and a subtle iodised, briny flavour that sets it apart from warmer-water spiny lobsters.
The word scampi began as the Italian scampo, the name for Nephrops norvegicus, and came to mean the peeled tails of that small lobster, whether served plain or breaded.
The heaviest lobster ever recorded was hauled off Nova Scotia in 1977: a monster weighing 44 lb 6 oz and stretching 3.5 feet from tail to claw-tip, still the Guinness World Record for largest marine crustacean.
That record Nova Scotia giant was estimated to be over 100 years old, a centenarian on a dinner plate.
The oldest American lobster on record was estimated at around 140 years old.
Blue lobsters are roughly a one-in-two-million genetic fluke, caused by a mutation that overproduces a single pigment protein.
Yellow lobsters run about one in 30 million, and albino lobsters are rarer than one in 100 million, the albinos lack pigment entirely, so they won't even turn red when cooked.
Lobster was once such low-status food that 19th-century Maine schoolchildren reportedly hid it in their lunchboxes, embarrassed to be seen eating it.
Long before tourists paid premium prices, the Wabanaki people called part of Mount Desert Island 'the clambake place,' leaving giant shell middens as proof of millennia of seafood feasts.
True or false: a split-coloured lobster, one half dark and one half bright, divided cleanly down the middle, is a colour mutant. False. It is a chimera, two embryos that fused inside a single egg, with odds around one in fifty million.
Did you know that around 95 percent of the rock lobster, locally called crayfish, caught in Western Australia is exported to China.
One of the best-loved gags in Woody Allen's 1977 film Annie Hall has lobsters escaping across the kitchen floor as the couple try to cook them, a scene that echoes the surreal lobster imagery Dali had made famous decades earlier.
Did you know the name Dublin Bay prawn comes from postal-ship crews who, while moored off Dublin in the early 1900s waiting to dock, cast nets and hauled up langoustines, so the little catch took the bay's name.
Legend has it that lobsters mate for life, a romantic idea popularised by a 'Friends' episode, but it's a myth: male lobsters are serially promiscuous, holding a den-mate for about two weeks before moving on.
You'll hear that lobsters are immortal, that's a myth: they have negligible senescence, not immortality, and still die from disease, predators, harvesting and the exhausting energy cost of moulting.
How lobster courtship really works: the female seeks out the dominant male's den and squirts pheromone-laced urine inside to announce herself, and he often 'boxes' her at the entrance before letting her in.
People say shared dens prove lobster monogamy, but biologists found the opposite, lobsters bunk together opportunistically for protection during vulnerable moults, not out of lifelong devotion.
The Greek writer Aelian, teaching in Rome in the second and third centuries, reported that on the island of Seriphos lobsters found dead were buried and mourned as though they belonged to an honoured family. The claim survives as a curiosity of antiquity rather than verified custom.
It is sometimes claimed that the name ise-ebi comes from isei ga ii, meaning spirited or lively, shortened over time. Japanese sources offer it as one folk etymology among several, alongside a simple link to the Ise region.
According to Healthline, a 100 gram serving of cooked lobster offers about 19 grams of high-quality protein for roughly 90 calories, which makes it naturally low in fat and calories.
According to nutrition data compiled by Healthline and Maine Lobster, lobster is an excellent source of selenium, supplying more than the full daily value in 100 grams, an antioxidant mineral involved in thyroid and immune function.
According to published nutrition profiles, a 100 gram portion of lobster provides roughly 1.4 micrograms of vitamin B12, about 60 percent of the daily value, supporting nerve function and red blood cell formation.
According to nutrition databases, lobster supplies about 4.1 mg of zinc per 100 grams, a mineral that contributes to normal immune function, and is also a source of copper and phosphorus.
Lobster contains modest omega-3 fatty acids, around 0.25 grams per 100 grams according to Healthline, less than oily fish but a useful contribution within a varied diet.
A 100 gram serving of cooked lobster carries about 145 mg of cholesterol. Healthline notes that for most people dietary cholesterol has only a minimal effect on blood LDL levels, though those advised to watch their intake should still take care.
Health authorities advise against eating the tomalley, the soft green hepatopancreas in a lobster's body cavity, because it can concentrate mercury and other contaminants. The muscle meat itself is generally considered relatively low in mercury.
Like other shellfish, lobster is high in purines, which the body breaks down into uric acid, so people managing gout are often advised to limit it. This is dietary guidance, not a claim that lobster causes gout in healthy people.
Like other shellfish, lobster is among the more common triggers of food allergy, with reactions ranging from itching and swelling to, rarely, breathing difficulty. Anyone with a known shellfish allergy should avoid it.