25 Delicious Facts About Lobsters

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We cracked open America's favorite crustacean, Homarus americanus, to plate the delicious facts hiding inside. Bob Bayer, head of the University of Maine’s Lobster Institute, helps us out.

1. If you cut a lobster, does it not bleed? Yes, of course—but it doesn't look like you'd expect. Lobster blood is colorless until exposed to oxygen, at which point it turns blue.

2. Typically, lobsters are a mottled brown, but genetic mutations can create red, blue, calico, and even albino lobsters. Heat denatures the proteins in the lobsters’ shells, releasing astaxanthin, which turns their shells bright red when they’re cooked.

3. Every time they molt—splitting their shells along the seam in the carapace—lobsters increase 20 percent in size. Young lobsters molt several times a year, but after they hit one pound, they start molting annually. After finding a soft place to hide, “they shed every part of the hard material, including the lining of the intestine,” Bayer says. "When the lobster comes out of its old shell, it’s all wrinkly. Its new shell is softer than your skin. If you take that lobster out of water, the claws will fall off; it doesn’t have the mechanical strength to keep the claws on." Then they eat their old shells for the calcium and phosphorus.

4. Freshly molted lobsters are called shedders.

5. The warmer the water, the faster lobsters grow.

6. Lobsters have three pairs of antennae, the largest of which is used for tactile sensing. "If a lobster’s going to go into a hole, for example, it’ll wave those large antennae around, sort of feel the hole, and then determine if it can fit, and then it’ll back in and hide," Bayer says. The two smaller pairs are chemosensory, helping the lobster find its food by sensing dissolved substances in the water, "a combination of our sense of taste and smell in one function,” according to Bayer.

7. The bigger claw is called the crusher claw, and lobsters use it to break up clams, crabs, and sea urchins. The cutter claw is used for tearing. “Some good-sized lobsters can raise a pressure closing strength of 100 pounds per square inch,” Bayer says. “Most of them are less than that, but it’s still a good amount of pressure.” If a lobster loses one of its claws or walking legs, the limb will regenerate. "If you’ve got a wound around the time that lobster is molting, you sort of get mixed biochemical signals, so you might end up with a duplicate of something," Bayer says. "You might get, say, two thumbs sticking out of the same claw."

8. Lobsters walk forward, but if they need to quickly get away, they propel themselves backward by pumping their tails. Females have broader tails than males so they can hold eggs there.

9. These crustaceans can’t see clear images, but their compound eyes are sensitive to light. Severing the eyestalk—which also serves as the lobster's hormonal center—will cause it to molt. And eyes don't grow back.

10. Lobsters use the front two legs—which are studded with chemosensory hairs—to put food into their mouths. “It almost looks like a squirrel eating,” Bayer says. The food goes into the stomach, where the gastric mill—made up of three teeth-like structures—grinds it up. Next, the food travels through the tomalley—a.k.a. the green thing you scrape off your meat. It’s the lobster’s main digestive tract: a small intestine, pancreas, and liver in one—and it’s a delicacy!

11. Lobsters aren’t scavengers; in fact, they feed on a large variety of live things, including other lobsters, marine worms, clams, mussels, and crabs in addition to bait (which is most often salted herring).

12. It takes a lot of herring to catch a lobster: "It averages about a pound of herring per pound of lobster that’s caught," Bayer says. "It’s expensive. It may be more than we need. We actually had a student who looked at this, and she found that you could use less and catch the same amount of lobster. But old habits die hard."

13. Fin-like structures called swimmerets help lobsters circulate water inside their shelters; females also use them to carry eggs.

14. Lobsters pee out of their faces. The urine comes from antennal glands located near the antennae. "They're greenish brown spots," Bayer says. "They actually look like two pieces of snot—that’s the best way to describe them. You'd have to open them up to see them." Peeing at each other is part of both fighting and courtship.

15. Speaking of courtship: In lobsters, it's kind of complicated. To woo a dominant male—who will have previously spent his time beating up her and all of the other lobsters in his neighborhood—the female heads to his shelter a number of times and pees pheromone-laced urine into it, which helps him relax. Because lobsters are cannibals, the pheromone is telling him two things: “It’s time to breed" and "Don’t eat me!” 

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Eventually, when he is sufficiently wooed, she'll move into his shelter and molt, at which point he uses the first pair of swimmerets—which, in males, are hard and bone-like and called gonopods—to transfer sperm to her. She'll stay in his shelter for another 10 days or so while her new shell hardens. Then she's back to her own life, and it's time for a new female to woo the male.

16. She stores the semen in a receptacle between her walking legs for six to nine months before she extrudes eggs, which then sit on her tail for another six to nine months. "When they’re immature, they’re very dark," Bayer says. "As they’re getting ready to hatch, these larvae, you can see the eyes." 

17. A lobster that's a pound and a half might carry 8000 to 10,000 eggs, which are kept in place by glue created in her cement glands. "The bigger they are, the more eggs they have," Bayer says. "You might have 30,000 or 40,000 on a really big lobster." If you’re eating lobster and find bright red stuff, that’s unextruded eggs—also known as roe.

18. When a fisherman traps a female lobster carrying eggs, he puts a V-notch in her tail. This tells other fishermen that she's a breeding female whether she has eggs or not, and should be thrown back. "They’re protected as long as that notch is present," Bayer says. "You're protecting your breeding population. If you think about it, it’s sensible, because you’re going to have your classes that don’t settle well, that don’t have good survival, but you’ve got this huge root stock that’s out there, so that the next year it can come back."

19. "When lobsters first hatch, they float—they float for the first couple of weeks," Bayer says. Some scientists call those floaters superlobsters, because they can swim forward in the water with their claws outstretched by beating the swimmerets under their tails. After this phase, they settle on the bottom. "Those that settle to the bottom, many of them will survive," Bayer says, "and it’s a good measure of what the upcoming stock is."

20. By the way: Despite what Phoebe from Friends believed, lobsters aren't monogamous. "Sometimes they'll have multiple parentage," Bayer says.

21. Fishermen used to guess at a lobster's age based on its size. Scientists only recently discovered an accurate way to determine a lobster's age: dissecting it and counting the rings in the eyestalk and gastric mill—similar to the way we calculate a tree's age.

22. The largest lobster ever recorded was caught near Nova Scotia in 1977 and weighed 44 pounds!

23. Science has shown that lobsters can recognize each other. Researchers at Woods Hole Oceanographic Institution set up an experiment where two crustaceans fought each other in a ring. Later, when they tried to have those same two lobsters fight again, the one that lost the first time recognized the winner and backed down immediately. "It wasn't just that the loser lobster had become a sissy or something," Trevor Corson, author of The Secret Life of Lobsters, told National Geographic. "When matched with a new lobster, he fought ferociously. So he was recognizing that previous lobster. They blindfolded him, and it didn't make a difference. So we get back to this pissing-in-each-other's-faces thing. [The scientists] catheterized a lobster with little tubes attached to its face and collected urine during combat. It turned out that without the urine in the water, the lobsters couldn't recognize each other." The losing lobster would recognize the winner for up to a week.

24. Can lobsters and other crustaceans feel pain? Scientists have gone back and forth on this; some recent research suggests that they probably do, while another study, published in 2005, says they don't. "There can be no absolute answer," Bayer says, though he's in the "no pain" camp. "They sense their environment, but don’t have the intellectual hardware to process pain. [If you look at] the nervous system of a lobster next to a grasshopper, and what’s notable is that the nervous system is so primitive that there isn’t really much to it. We argue that there is no brain and no ability to process pain. They do respond to their environment, and they sense that it’s not right for them. If they sense warmth or even chemicals in their environment, they’ll try to avoid them, those things that are noxious." Some suggest that the most humane way to cook a lobster is to start by putting it in fresh cold water or the freezer—both of which essentially puts it to sleep—before dropping it in the pot. (The "scream," by the way, isn't a scream at all, but steam escaping from their shells.)

25. According to Bayer, "Anything that kills insects can kill a lobster," and lobsters are extremely sensitive to insecticides, even at parts-per-billion concentration: "They’re so sensitive that, if you’ve got a room with a lobster tank, and you take an insecticide and you give it a five-second spray at the end of the room, it's likely that all those lobsters would be dead by the end of the day," he says. So we might want to think about what we're dumping into our oceans.


11 Memorable Facts About Cats the Musical

Mike Clarke/Getty Images
Mike Clarke/Getty Images

“It was better than Cats!” Decades after Andrew Lloyd Webber's famed musical opened on Broadway on October 7, 1982, this tongue-in-cheek idiom remains a part of our lexicon (thanks to Saturday Night Live). Although the feline extravaganza divided the critics, it won over audiences of all ages and became an industry juggernaut—one that single-handedly generated more than $3 billion for New York City's economy—and that was before it made a return to the Great White Way in 2016. In honor of Andrew Lloyd Webber's birthday on March 22, let’s take a trip down memory lane.

1. The work that Cats the musical is based on was originally going to include dogs.

Old Possum’s Book of Practical Cats, published in 1939, is a collection of feline-themed poems written by the great T. S. Eliot. A whimsical, lighthearted effort, the volume has been delighting cat fanciers for generations—and it could have become just as big of a hit with dog lovers, too. At first, Eliot envisioned the book as an assemblage of canine- and tabby-related poems. However, he came to believe that “dogs don’t seem to lend themselves to verse quite so well, collectively, as cats.” (Spoken like a true ailurophile.) According to his publisher, Eliot decided that “it would be improper to wrap [felines] up with dogs” and barely even mentioned them in the finished product.

For his part, Andrew Lloyd Webber has described his attitude towards cats as “quite neutral.” Still, the composer felt that Eliot’s rhymes could form the basis of a daring, West End-worthy soundtrack. It seemed like an irresistible challenge. “I wanted to set that exciting verse to music,” he explained. “When I [had] written with lyricists in the past … the lyrics have been written to the music. So I was intrigued to see whether I could write a complete piece the other way ‘round.”

2. "Memory" was inspired by a poem that T.S. Eliot never finished.

In 1980, Webber approached T.S. Eliot’s widow, Valerie, to ask for her blessing on the project. She not only said “yes,” but provided the songwriter with some helpful notes and letters that her husband had written about Old Possum’s Book of Practical Cats—including a half-finished, eight-line poem called “Grizabella, the Glamour Cat.” Feeling that it was too melancholy for children, Eliot decided to omit the piece from Practical Cats. But the dramatic power of the poem made it irresistible for Webber and Trevor Nunn, the show’s original director. By combining lines from “Grizabella, the Glamour Cat” with those of another Eliot poem, “Rhapsody on a Windy Night,” they laid the foundation for what became the powerful ballad “Memory.” A smash hit within a smash hit, this showstopper has been covered by such icons as Barbra Streisand and Barry Manilow.

3. Dame Judi Dench left the cast of Cats when her Achilles tendon snapped.

One of Britain’s most esteemed actresses, Dench was brought in to play Grizabella for Cats’s original run on the West End. Then, about three weeks into rehearsals, she was going through a scene with co-star Wayne Sleep (Mr. Mistoffelees) when disaster struck. “She went, ‘You kicked me!’” Sleep recalls in the above video. “And I said, ‘I didn’t, actually, are you alright?’” She wasn’t. Somehow, Dench had managed to tear her Achilles tendon. As a last-minute replacement, Elaine Paige of Evita fame was brought aboard. In an eerie coincidence, Paige had heard a recorded version of “Memory” on a local radio station less than 24 hours before she was asked to play Grizabella. Also, an actual black cat had crossed her path that day. Spooky.

4. To finance the show, Andrew Lloyd Webber ended up mortgaging his house.

Although Andrew Lloyd Webber had previously won great acclaim as one of the creative minds behind Jesus Christ Superstar and other hit shows, Cats had a hard time finding investors. According to choreographer Gillian Lynne, “[it] was very, very difficult to finance because everyone said ‘A show about cats? You must be raving mad.’” In fact, the musical fell so far short of its fundraising goals that Webber ended up taking out a second mortgage on his home to help get Cats the musical off the ground.

5. When Cats the musical came to Broadway, its venue got a huge makeover.

Cats made its West End debut on May 11, 1981. Seventeen months later, a Broadway production of the musical launched what was to become an 18-year run at the Winter Garden Theatre. But before the show could open, some major adjustments had to be made to the venue. Cats came with an enormous, sprawling set which was far too large for the theatre’s available performing space. To make some more room, the stage had to be expanded. Consequently, several rows of orchestra seats were removed, along with the Winter Garden’s proscenium arch. And that was just the beginning. For Grizabella’s climactic ascent into the Heaviside Layer on a giant, levitating tire, the crew installed a hydraulic lift in the orchestra pit and carved a massive hole through the auditorium ceiling. Finally, the theater’s walls were painted black to set the proper mood. After Cats closed in 2000, the original look of the Winter Garden was painstakingly restored—at a cost of $8 million.

6. Cats the musical set longevity records on both sides of the Atlantic.

The original London production took its final bow on May 11, 2002, exactly 21 years after the show had opened—which, at the time, made Cats the longest-running musical in the West End’s history. (It would lose that title to Les Miserables in 2006.) Across the pond, the show was performed at the Winter Garden for the 6138th time on June 19, 1997, putting Cats ahead of A Chorus Line as the longest-running show on Broadway. To celebrate, a massive outdoor celebration was held between 50th and 51st streets, complete with a laser light show and an exclusive after-party for Cats alums.

7. One theatergoer sued the show for $6 million.

Like Hair, Cats involves a lot of performer-audience interaction. See it live, and you might just spot a leotard-clad actor licking himself near your seat before the curtain goes up. In some productions, the character Rum Tum Tugger even rushes out into the crowd and finds an unsuspecting patron to dance with. At a Broadway performance on January 30, 1996, Tugger was played by stage veteran David Hibbard. That night, he singled out one Evelyn Amato as his would-be dance partner. Mildly put, she did not appreciate his antics. Alleging that Hibbard had gyrated his pelvis in her face, Amato sued the musical and its creative team for $6 million.

8. Thanks to Cats the musical, T.S. Eliot received a posthumous Tony.

Because most of the songs in Cats are almost verbatim recitations of Eliot’s poems, he’s regarded as its primary lyricist—even though he died in 1965, long before the show was conceived. Still, Eliot’s contributions earned him a 1983 Tony for Best Book of a Musical. A visibly moved Valerie Eliot took the stage to accept this prize on her late spouse’s behalf. “Tonight’s honor would have given my husband particular pleasure because he loved the theatre,” she told the crowd. Eliot also shared the Best Original Score Tony with Andrew Lloyd Webber.

9. The original Broadway production used more than 3000 pounds of yak hair.

Major productions of Cats use meticulously crafted yak hair wigs, which currently cost around $2300 apiece and can take 40 hours or more to produce. Adding to the expense is the fact that costumers can’t just recycle an old wig after some performer gets recast. “Each wig is made specifically for the actor,” explains wigmaker Hannah McGregor in the above video. Since people tend to have differently shaped heads, precise measurements are taken of every cast member’s skull before he or she is fitted with a new head of hair. “[Their wigs] have to fit them perfectly,” McGregor adds, “because of the amount of jumping and skipping they do as cats.” Perhaps it should come as no surprise that, over its 18-year run, the first Broadway production used 3247 pounds of yak hair. (In comparison, the heaviest actual yaks only weigh around 2200 pounds.)

10. A recent revival included hip hop.

In December 2014, Cats returned to the West End with an all-new cast and music. “The Rum Tum Tugger,” a popular Act I song, was reimagined as a hip hop number. “I’ve come to the conclusion, having read [Old Possum’s Book of Practical Cats] again, that maybe Eliot was the inventor of rap,” Webber told the press.

11. Another revival featured an internet-famous feline for one night only.

On September 30, Grumpy Cat made her Broadway debut in Cats, briefly taking the stage with the cast. Despite being named Honorary Jellicle Cat, she hated every minute of it.

11 Words That Started Out As Spelling Mistakes

A woman sneezing, which in Middle English would have been called a fneze instead.
A woman sneezing, which in Middle English would have been called a fneze instead.
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The word irregardless might not be to everyone’s taste, but there’s no denying that if you were to use it in a sentence, you’d be perfectly understood—and that’s more than enough evidence for it to have been accepted into many dictionaries (albeit flagged as non-standard or informal), including Oxford Dictionaries, Merriam-Webster, and even the hallowed Oxford English Dictionary, which has so far been able to trace it back as far as 1912. So despite it having its origins in an error, and irregardless of what you might think of it, there’s no denying irregardless is indeed a word—and it’s by no means alone.

1. Expediate

Meaning “to hasten” or “to complete something promptly,” the verb expediate is thought to have been invented by accident in the early 1600s when the adjective form of expedite, meaning “ready for action” or “alert,” was misspelled in an essay by the English politician Sir Edwin Sandys (it was later corrected).

2. Culprit

There are several different accounts of the origin of culprit, but all of them seem to agree that the word was born out of a mistake. Back when French was still the language of the law in England in the Middle Ages (a hangover from the days of the Norman Conquest), the phrase Culpable, prest d’averrer nostre bille—literally “guilty, ready to prove our case”—was apparently the stock reply given by the Clerk of the Crown whenever a defendant gave a plea of not guilty. In the court records, this fairly long-winded phrase was often abbreviated just to cul. prit., and, as the Oxford English Dictionary explains, “by a fortuitous or ignorant running together of the two,” the word culprit was born.

3. Despatch

Despatch is a chiefly British English variant of dispatch, often used only in formal contexts like the name of the political despatch box in the House of Commons. The e spelling apparently began as a phonetic variation of the original I spelling, but after Samuel Johnson included it in his Dictionary of the English Language in 1755, its use was legitimized and thrived in the 19th century. Because Johnson himself preferred the I spelling in his own writings, however, it's supposed that he included the e spelling by mistake and inadvertently popularized the error.

4. Nickname

Nicknames were originally called eke names, with the verb eke used here in the sense of “to make longer” or “to provide an addition.” Sometime in the 13th century, however, “an eke-name” was mistakenly interpreted as “a neke-name,” and the N permanently jumped across from the indefinite article an to the verb eke. The same error—known linguistically as “rebracketing” or “junctural metanalysis”—is responsible for nadders, numpires, and naprons all losing their initial Ns in the Middle English period.

5. Ammunition

Ammunition derives from a faulty division of the French la munition, which was incorrectly misheard as l'amonition by French soldiers in the Middle Ages, and it was this mistaken form that was borrowed into English in the 1600s.

6. Scandinavia

Scandinavia was originally called Scadinavia, without the first N, and is thought to take its name from an island, perhaps now part of the Swedish mainland, called Scadia. According to the Oxford English Dictionary, the extra N was added in error by the Roman scholar Pliny the Elder, and has remained in place ever since.

7. Syllabus

If all had gone to plan in the history of the word syllabus, those two Ls should really be Ts: Syllabus was coined as a Latin misreading of an Ancient Greek word, sittybos, meaning “a table of contents.”

8. Sneeze

Oddly, sneeze was spelled with an F and not an S, fneze, in Middle English, which gives weight to the theory that it was probably originally coined onomatopoeically. At least one explanation of why the letter changed suggests that this F inadvertently became an S sometime in the 15th century due to continual misreadings of the long lowercase f as the old-fashioned long S character, ſ.

9. Ptarmigan

The ptarmigan is a bird of the grouse family, found in mountainous and high-latitude environments. Its bizarre name with its initial silent P is something of a mystery, as the original Scots word from which it derives, tarmachan, shows no evidence of it and there’s little reason why one should ever have to have been added to it—except, of course, if it were a mistake. The P spelling first emerged in the late 1600s, and is thought to have been a mistaken or misguided attempt to ally the name to the Greek word for a wing, pteron, and eventually this unusual P spelling replaced the original one.

10. Sherry

Sherry takes its name from the southern Spanish port of Xeres (now Jerez de la Frontera in Cádiz) and was originally known as vino de Xeres, or “wine of Xeres.” This name then morphed into sherris when sherry first began to be talked about in English in the early 17th century, but because of that final S, it didn’t take long for that to be misinterpreted as a plural. Ultimately, a mistaken singular form, sherry, emerged entirely by mistake in the early 1600s.

11. Pea

Another word that developed from a plural-that-actually-wasn’t is pea. One pea was known as a pease in Middle English, but because of that final “s” sound, pease was quickly misinterpreted as a plural, giving rise to a misguided singular form, pea, in the 17th century. The actual plural of pease in Middle English, incidentally, was pesen.

This list first ran in 2016.

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