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The legend of the SS Ourang Medan, a name meaning Man of Medan, describes a freighter found intact with every crew member dead on their backs, faces frozen in terror, and not a mark on any body, even the ship's dog. The story exists in two versions. In 1940 the ship sends distress calls from south of the Solomon Islands asking for a doctor, then a warship, ending with the phrase "crew has" and silence. The better known version, set between June 1947 and February 1948 in the Strait of Malacca, adds the real American ships City of Baltimore and Silver Star, a Morse message that all officers including the captain lie dead, and a final "I die." A boarding party from the Silver Star finds the bodies, but a fire breaks out in the number 4 hold, and the ship explodes and sinks before it can be towed.

With no wreck to examine, theorists filled the gap. Roy Bainton proposed smuggled potassium cyanide and nitroglycerin reacting with seawater, a sole survivor variant blamed oil of vitriol that would have burned the bodies, a Cold War theory named tabun nerve gas moved on an unregistered Dutch freighter, and Vincent Gaddis suggested carbon monoxide from a boiler fire, which would leave victims looking asleep. Then researchers checked the paperwork: no entry in Lloyd's Register, Dutch records, or Indonesian port logs, and the real Silver Star's 1947 and 1948 logs record no rescue. The story traces to an Italian journalist and radio operator from Trieste who published it in Il Piccolo in October 1940 as part of a series on dramas of the sea.

• In November 1940 the Daily Mirror and Yorkshire Evening Post ran the tale, credited to the Associated Press.
• In 1948 the Dutch-Indonesian paper De Locomotief ran a three-part series with the Malacca setting and the Silver Star.
• Its editors wrote that the story might be a thrilling romance of the sea but the author assured them it was authentic.
• A German survivor was said to have confessed to an Italian missionary in the Marshall Islands about a run from China to Costa Rica.
• In May 1952 the US Coast Guard's Proceedings of the Merchant Marine Council printed the tale as fact.

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In the late 1830s Isambard Kingdom Brunel and the Great Western Steamship Company planned a safe wooden paddle steamer to follow their success with the Great Western. Then in 1838 two associates rode the iron-hulled Rainbow, and Brunel switched to iron, which avoided the hogging that limited wooden ships to about 300 feet. In 1840, after seeing the screw-driven SS Archimedes, he scrapped half-built paddle engines for a propeller, delaying the ship nine months and pushing her to 3,400 tons, over 1,000 tons larger than any ship afloat. At the 1843 Bristol launch the tug Avon pulled too early, Clarissa Miles's champagne bottle fell 10 feet short, and Prince Albert, who arrived on a royal train Brunel drove himself, had to throw a second bottle. The widened, engine-laden hull then could not fit through the harbor locks, and she stayed trapped for over a year until workmen tore down coping stones in December 1844.

Her 1845 maiden voyage took nearly 15 days to New York, and the round-bottomed hull rolled so badly that passengers were sick and propeller blades snapped off, forcing 110-foot bilge keels and a four-bladed propeller. In September 1846 Captain James Hoskin mistook a new lighthouse for one on the Isle of Man and ran her aground in Dundrum Bay, Ireland, where she sat nearly a year behind a breakwater Brunel built. The 34,000 pound rescue bankrupted the company, and the 117,000 pound ship sold for 25,000 pounds. Gibbs, Bright and Company refitted her with 730 berths for the Australian gold rush, and she thrived for decades before ending as a coal bunker in the Falkland Islands, scuttled in 1937.

• A silent chain drive with inverted tooth chains replaced screeching gears, and a hollow shaft carried cooling seawater.
• An 1861 voyage carried 544 passengers, a cow, 36 sheep, 140 pigs, and England's first cricket team to tour Australia.
• Captain John Gray, her commander for nearly 20 years, vanished from the deck in 1872.
• In 1970, funded by Sir Jack Hayward, she rode the pontoon Mulus III on a 47-day tow and passed under Brunel's Clifton Suspension Bridge.
• A glass plate and dehumidifiers keep her lower hull at 20 percent humidity to halt chloride-driven rust.

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For centuries history books showed Vitus Bering as a soft-faced gentleman in a powdered wig, but in 1991 a Russian-Danish team exhumed his grave on a remote island and found a skull with a heavy, angular face. Historians now suspect the famous portrait shows his uncle. Born in Denmark in 1681, Bering joined Peter the Great's new Russian Navy in 1704 and spent the Great Northern War mastering lightering, the unglamorous math of moving cargo from deep-draft ships to small boats. Passed over for promotion in 1721 and humiliated when his wife Anna Christina's younger sister married a less experienced man who was already a rear admiral, he retired in 1724 to gain the rank of first captain, then was rehired the same day he reapplied. That rank put him in front of the dying Tsar, who sent him on the First Kamchatka Expedition to learn whether Asia and North America were joined.

Barred from the Amur River route by the Treaty of Nerchinsk, the expedition hauled anchors, sails, and rigging across Siberia by sledge, with Martin Spangberg's men towing sleds through waist-high snow at a mile a day. Bering seized local winter flour reserves to feed his crew, built the St. Gabriel, sailed into the strait in 1728, saw the coast turn west, and turned back without sighting America. The Second Kamchatka Expedition swelled into the Great Northern Expedition, with its cost rising from about 12,000 to roughly 300,000 rubles and nearly 3,000 people. On July 16, 1741 his St. Peter sighted Mount St. Elias in Alaska, and he turned for home at once. Forensic work and Georg Steller's journals point to heart failure, not scurvy, as the cause of his death in December 1741 after the ship ran aground in the Commander Islands.

• Survivors dug canvas-roofed pits in frozen sand and hunted sea cows and Arctic foxes to last the winter.
• Under Sven Waxell they broke up the 80-foot St. Peter and forged its nails into a 40-foot boat.
• Of 77 men on the St. Peter, 46 sailed back to Kamchatka with the charts and Steller's manuscripts.
• Semyon Dezhnev sailed the strait 80 years earlier, but his report sat forgotten in a Yakutsk archive.
• James Cook, using Bering's charts, named the strait after him out of professional respect.

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The animals behind many mermaid sightings are manatees: grazers of up to 1,300 pounds that eat as much as 110 pounds of seagrass and other plants a day and whose closest land relatives are elephants and hyraxes. Members of the order Sirenia with the dugong, they descend from four legged shoreline mammals of about 60 million years ago. The name may come from the Latin manus, hand, or a Carib word for breast, fitting mammary glands set under the flippers. Because sandy grass grinds down weak enamel, they have no front teeth and instead grow marching molars that move forward about one millimeter to one centimeter a month and fall out at the front. Along with sloths, they break the mammalian rule of seven neck vertebrae with only six. A 45 meter gut ferments cellulose, and a split upper lip whose halves move independently works like fingers.

In tests, manatees match dolphins and seals at acoustic and visual discrimination, and they keep detailed spatial memories. They cannot survive long in water below about 15 degrees Celsius, so they migrate, reaching Cape Cod, New York City, and in 2006 Memphis via the Mississippi. Calves learn warm spring refuges, such as Citrus County, Florida, where springs hold 72 degrees Fahrenheit, but many now winter at power plant outflows that agencies require some plants to keep running. Boat strikes cause about a quarter of Florida deaths because the Lloyd's mirror effect cancels low frequency engine noise near the surface. Red tide killed 15 percent of the west coast population in 1996, and in 2021 seagrass die-offs led agencies to hand out 3,000 pounds of romaine lettuce a day.

• Mating herds form when a dozen or more males pursue a single female, sometimes for weeks.
• The Serer people of West Africa say the manatee holds the secrets of the future.
• In World War II Naples, aquarium manatees were cooked and served to Allied generals.
• Guyana has used captive manatees to clear weeds from canals since the 1950s.
• Snooty, born in Miami in 1948, lived to 69 at the South Florida Museum.

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A clipper was defined not by its rig but by a philosophy: speed over cargo space and operating cost, delivered by a long narrow hull, a hollow bow, and a sharp V shaped deadrise under an enormous sail area. The design traces to the small Baltimore clippers of the Chesapeake, rarely over 200 tons, which as War of 1812 privateers like the Chasseur could sail about 45 degrees into the wind and escape British warships. The same speed was adopted by illegal slave traders dodging naval patrols, and captured ships were resold into the opium trade the East India Company used to pay for Chinese tea. The Ann McKim of 1833 scaled the design to nearly 500 tons. In Aberdeen, Alexander Hall and Sons launched the Scottish Maid in 1839 with an extended Aberdeen bow that exploited an 1836 tonnage law measuring length at half the midship depth. New York's Rainbow of 1845, at 757 tons, is called the first extreme clipper.

The California and Australian gold rushes let a clipper pay for itself in one voyage. Donald McKay's Flying Cloud ran from New York to San Francisco in 89 days and 8 hours in 1851, navigated by Eleanor Creesy using Matthew Fontaine Maury's wind charts, a record that stood until 1989. Yet in the 1866 Great Tea Race, Ariel and Taeping docked 28 minutes apart after 99 days, averaging only about 6.6 knots. The Panic of 1857 and the Civil War ended the American boom, and British composite hulls of iron frames and wood planking held on until Alfred Holt's compound engined SS Agamemnon in 1866 and the Suez Canal in 1869 handed the tea trade to steam.

• Sovereign of the Seas was recorded at 22 knots.
• Champion of the Seas logged 465 nautical miles in 24 hours, unbeaten by a monohull until 2001.
• Wood planking insulated copper sheathing from the iron frame to prevent galvanic corrosion.
• Clipper sailing cards of the 1850s are considered the first prominent use of color in American advertising.
• The Cutty Sark survives at Greenwich after a 2007 fire, and the City of Adelaide is being conserved in Australia.

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The Portuguese man o' war is not a jellyfish but a siphonophore, a colony of zooids that all grow from one fertilized egg and share identical DNA. Through gene expression each zooid locks into a job: dactylozooids hunt and defend, gastrozooids digest, and gonozooids reproduce. Its float, the pneumatophore, can reach 30 centimeters and holds air plus up to 13 percent carbon monoxide made by a gas gland, letting it inflate, or deflate to sink away from threats. The inflated float resembles a Portuguese caravel, the source of the name. With no fins or motor, it drifts with wind and current and trails tentacles usually about 10 meters long and sometimes up to 30, armed with spring loaded nematocysts that paralyze fish almost instantly before the catch is reeled up to the gastrozooids.

In Australia the colonies cause up to 10,000 human stings each summer, raising whip-like welts and pain lasting one to three hours, with rare deaths mostly among small children. Beached specimens and loose tentacles can sting for days. Vinegar locks unfired nematocysts, and immersion in 45 degree Celsius water for 20 minutes breaks down the venom proteins. Predators have found workarounds: loggerhead turtles and ocean sunfish have tough mouths, the blue dragon sea slug stores stolen nematocysts, and blanket octopuses carry torn off tentacles as weapons. Each colony is left-handed or right-handed and sails about 45 degrees off the wind, so a storm can beach at most half a population. Colonies are all male or all female, and their spawning has never been observed in the wild.

• The man-of-war fish lives among the tentacles and may lure prey for the colony.
• The violet sea snail floats on a raft of mucus bubbles to hunt the man o' war.
• Researchers run drift models backward from beachings in Ireland and the Bay of Biscay to trace origins.
• Genetic work splits the old single species into Physalia physalis, Physalia utriculus, and Physalia minuta.
• A new species, Physalia mikazuki, was described off Japan in 2025.

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Ferdinand Magellan, born around 1480 into minor Portuguese nobility, spent eight years fighting in India and Southeast Asia, where at Malacca he uncovered a plot and saved his friend Francisco Serrao. Serrao's letters from the Moluccas described the spice wealth there. A leg wound in Morocco left Magellan with a limp, false charges of trading with the enemy ruined him, and King Manuel I rejected his plan for a western route. In 1517 he took it to Seville and King Charles I, arguing with help from his enslaved interpreter Enrique that no one could fix the 1494 Treaty of Tordesillas line in Asia because longitude could not be measured. Portugal reportedly had his family home vandalized and sent a fleet to hunt him. In September 1519 he sailed with five ships and about 270 men, many under resentful Spanish captains.

At Puerto San Julian, captains Juan de Cartagena, Gaspar de Quesada, and Luis de Mendoza rebelled. Mendoza was killed, Quesada beheaded, and Cartagena marooned. The Santiago was wrecked, and the San Antonio deserted in the strait now named for Magellan. Trusting Ptolemy's undersized Earth, he expected a short crossing of the ocean he called the Pacific, but it took three months and 20 days, with men chewing leather and 30 dying of scurvy while quince jelly kept him healthy. In the Philippines he converted Rajah Humabon of Cebu, then attacked Lapulapu on Mactan on April 27, 1521, where roughly 50 men faced about 1,500 warriors who speared their unarmored legs. Magellan was killed in the surf, and Juan Sebastian Elcano, a former mutineer, brought the Victoria home with 18 or 19 survivors in September 1522.

• Magellan gave Humabon's queen the Santo Nino image after holding the first Catholic Mass in the Philippines.
• Humabon later poisoned surviving officers at a banquet.
• San Antonio deserters smeared Magellan, and his wife was placed under house arrest and died in poverty with their two children.
• Antonio Pigafetta's daily diary, shared with the kings of Spain, Portugal, and France, restored Magellan's reputation.
• His earlier travels east to the Malay Archipelago meant he had nearly circled the globe over his lifetime.

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Francis Drake, born around 1540 in Devon to a Protestant farmer and preacher, learned seamanship on a small trading ship and in the 1560s joined his relative John Hawkins in a crown backed push into the West African slave trade. In 1568 a Spanish surprise attack at San Juan de Ulua slaughtered hundreds of English sailors, and Drake fled in the Judith, leaving Hawkins surrounded. Shut out of legitimate trade, he turned to Panama, where Peruvian silver crossed the isthmus by mule train. After a failed raid on Nombre de Dios in 1572, he allied with the Cimarrons, communities of escaped enslaved Africans, and one of them, Diego, became his companion. In 1573 Cimarron guides led him up a tree with steps cut into its trunk, making him the first Englishman to see the Pacific. With a French privateer he ambushed a mule train carrying about 20 tons of silver and gold.

His secret 1577 voyage, almost certainly backed by Queen Elizabeth, stopped at Puerto San Julian, where he shared communion and dinner with co-commander Thomas Doughty before beheading him. Sailing alone in the Golden Hind, he raided Valparaiso, took the treasure ship Cacafuego, claimed Nova Albion in California in 1579, and reached Plymouth in 1580 with 59 survivors. He was knighted on deck in 1581 by a French diplomat. In 1587 at Cadiz he burned seasoned barrel staves, spoiling the Armada's supplies, and in 1588 he doused his guiding lantern to capture the payroll ship Rosario. The 1589 English Armada lost 11,000 to 20,000 men and sidelined him. On a final raid he died of dysentery in January 1596 at 56 and was buried at sea off Portobelo in a lead coffin.

• The Spanish called him El Draque, the dragon.
• He produced a solid gold quoit from his shirt to tell his crew the 1573 raid had succeeded.
• His crew found that chewing Winter's bark cured scurvy.
• He gave captured Spanish captains dinner, gifts, and safe conduct letters.
• A cannonball tore through his cabin in Puerto Rico during the 1595 voyage.

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In 1981, anthropologists exhumed three sailors from the permafrost of Beechey Island and found high lead levels, scurvy, and signs of botulism, evidence from the Franklin expedition. The search for a sea route through the Canadian Arctic Archipelago began with John Cabot in 1497, driven by the hunt for a westward path to Asia and by bad science: the theory of a warm open polar sea and the belief that seawater could not freeze. In 1611 Henry Hudson's crew mutinied and set him, his teenage son, and seven others adrift in James Bay. Parliament later offered a 20,000 pound prize. In 1845 Sir John Franklin sailed with HMS Erebus and HMS Terror. Both ships were locked in ice near King William Island by 1846, Franklin died in 1847, and in 1848 the survivors abandoned ship and dragged sledges south until every man died. Their 8,000 food tins had been sealed with lead solder.

In 1854 John Rae of the Hudson's Bay Company brought back Inuit reports of cannibalism, which Charles Dickens and others refused to accept. Rae succeeded by traveling light, using dog sleds and furs, and learning from the Inuit. Robert McClure crossed between 1850 and 1854 only after abandoning his ice trapped ship. Roald Amundsen made the first all sea transit from 1903 to 1906 in the 47 ton herring boat Gjoa with six men, wintering at King William Island and skiing about 800 kilometers to Eagle, Alaska, to send a telegram. In August 2007 the passage opened without an icebreaker. In 2013 the Nordic Orion carried over 73,000 tons of coking coal from Canada to Finland, and in 2016 the Crystal Serenity took over 1,500 people from Alaska to New York in 32 days.

• Only about 12 percent of Canada's Arctic waters are charted to modern standards.
• Parts of the eastern route are barely 15 meters deep, and drifting multi-year ice makes schedules unreliable.
• Canada calls the passage internal waters, while the United States calls it an international strait.
• A gray whale, long gone from the Atlantic, appeared in the Mediterranean in May 2010.
• The Pacific plankton Neodenticula seminae is back in the Atlantic after about 800,000 years.

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William Bligh, born in 1754 and entered on Royal Navy books at age seven, was handpicked in 1776 by James Cook as sailing master for the third Pacific voyage. After Cook was killed in Hawaii and his successor Charles Clerke also died, Bligh helped bring the crew home in 1780. In 1787 he took command of HMS Bounty to carry breadfruit from Tahiti to feed enslaved workers on Caribbean plantations. The Admiralty rated the ship a cutter, which meant no extra officers and no Royal Marines. A month of failed attempts at Cape Horn forced the long route around Africa, and the late arrival kept the crew in Tahiti five months waiting for plants. On April 28, 1789, Fletcher Christian and 18 others seized the ship without bloodshed and set Bligh and 18 loyal men adrift in a 23 foot launch.

With a quadrant, compass, and pocket watch but no chronometer or charts, and after a man was killed on Tofua, Bligh steered 3,600 nautical miles to Timor in 47 days, rationing bread by weighing it against a pistol ball and charting the northern Australian coast along the way. Ship logs show he flogged less than most captains and fought scurvy with sauerkraut and exercise, but his vicious verbal abuse and grudges drove men to hate him. Exonerated, he completed the breadfruit mission in 1791 to 1793, lost his ship again in the 1797 Spithead and Nore mutinies, where the fleet called him That Bounty Bastard, then fought well at Camperdown and at Copenhagen under Nelson. As governor of New South Wales from 1806 he attacked the rum monopoly of the New South Wales Corps and John Macarthur until 400 soldiers arrested him in January 1808.

• Enslaved workers in the Caribbean refused to eat the breadfruit he delivered.
• The ackee fruit was named Blighia sapida in his honor.
• At Copenhagen he kept Nelson's signal to continue fighting flying instead of the retreat order.
• His enemies spread a cartoon claiming he hid under a servant's bed during the Rum Rebellion.
• He was promoted to vice admiral, surveyed Dublin Bay, and died of cancer in London in 1817.