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Nature

2,233 cards. Each one is a 40-second story with a five-minute read behind it. Page 26 of 38.

  1. Wallacea’s island stairway bred the Komodo dragonThe Lesser Sunda Islands—Nusa Tenggara in Indonesian usage—step from Bali to Timor and the Tanimbar group across Wallacea, with only Bali west of the Wallace Line on the Sunda She…
  2. Kipling’s greasy river still arcs 1,750 kilometres to the Indian OceanThe Limpopo rises in South Africa and runs about 1,750 kilometres to Mozambique’s coast, draining some 415,000 square kilometres. For roughly 640 kilometres it borders Botswana an…
  3. France’s longest river takes its name from Gaulish siltThe Loire runs 1,006 kilometres—France’s longest river and the world’s 171st—draining 117,054 square kilometres, more than a fifth of the country. From the Cévennes near Mont Gerb…
  4. Half of the Philippines lives on one rice-mortar-named islandLuzon is the Philippines’ largest and most populous island, home to Manila, Quezon City, and about 64.3 million people as of 2024—more than half the national total. The name likel…
  5. Canada’s longest river system drains a fifth of the country northWith the Slave, Peace, and Finlay, the Mackenzie forms Canada’s longest river system and North America’s second-largest drainage after the Mississippi. The main stem alone runs 1,…
  6. Portugal’s first Age of Discovery landfall still makes fortified wineMadeira, an autonomous Portuguese region about 805 kilometres southwest of the mainland, was claimed in 1419 for Prince Henry the Navigator and settled after 1420—the first territ…
  7. The Amazon’s “Wood River” floods a plain the size of a countryThe Madeira runs about 1,450 kilometres, or 3,250–3,380 kilometres if measured as the Madeira–Mamoré system, making it one of the Amazon’s great white-water feeders. Portuguese ca…
  8. Two-thirds of Colombians live in one Andean river’s basinColombia’s Magdalena River runs about 1,528 kilometres from Huila’s cordillera split to Barranquilla’s Bocas de Ceniza on the Caribbean. Its 273,000-square-kilometre basin covers …
  9. “Indochina” was a nineteenth-century name for a six-country peninsulaMainland Southeast Asia—Cambodia, Laos, Myanmar, Peninsular Malaysia, Thailand, Vietnam, and sometimes Singapore—is the continental half of Southeast Asia. Nineteenth-century scho…
  10. The shallowest Great Lake can raise seiches on a breezeLake Erie ranks fourth among the Great Lakes by area and eleventh worldwide, yet it is the shallowest, southernmost, and smallest by volume. Western depths average only 25 to 30 f…
  11. Thirty thousand islands give Huron the longest Great Lakes shoreLake Huron, shared by Ontario and Michigan, covers about 23,000 square miles—second among the Great Lakes by area and third among Earth’s freshwater lakes. Count its 30,000 island…
  12. The Zambezi’s dam made the world’s largest reservoir by volumeLake Kariba, filled between 1958 and 1963 behind Kariba Dam, holds about 185 cubic kilometres of water—more than any other artificial lake. Stretching over 223 kilometres along th…
  13. Europe’s largest lake drains to the Baltic through the NevaLake Ladoga near Saint Petersburg covers about 17,891 square kilometres—Europe’s largest lake wholly on the continent, Russia’s second after Baikal, and fourteenth worldwide. The …
  14. One rift lake holds more fish species than any otherLake Malawi—Nyasa in Tanzania, Niassa in Mozambique—ranks fourth among freshwater lakes by volume and ninth by area, yet leads the planet in fish diversity with at least 700 cichl…
  15. The only Great Lake lying entirely inside one countryLake Michigan holds about 1,180 cubic miles of water and plunges to 923 feet, ranking second among the Great Lakes by volume and depth after Superior. Alone among the five, it sit…
  16. A Congo headwater lake once hosted Kilwa Island slave tradersLake Mweru sits on Africa’s Congo River’s longest arm, drawing a 110-kilometre border between Zambia and the Democratic Republic of the Congo. Arab and Swahili ivory traders once …
  17. Central America’s biggest lake still hosts bull sharksLake Nicaragua—Cocibolca or Mar Dulce to locals—covers 8,264 square kilometres, the largest freshwater lake in Central America. Freshwater sharks, sawfish, and tarpon share a tect…
  18. Europe’s second-largest lake hides a wooden World Heritage isleLake Onega in northwestern Russia covers 9,891 square kilometres without its islands—Europe’s second-largest lake and the world’s seventeenth by area. About 1,650 islands include …
  19. The smallest Great Lake by area still out-volumes ErieLake Ontario, easternmost of the Great Lakes, covers about 19,000 square kilometres split between Ontario and New York—the chain’s smallest surface. Niagara River water enters; th…
  20. Ojibwe’s “great sea” is the world’s largest freshwater surfaceLake Superior—gichi-gami, the Ojibwe “great sea”—covers about 31,700 square miles, the largest freshwater lake by area on Earth. French explorers called it lac supérieur because i…
  21. Africa’s deepest lake is also Earth’s longest freshwater trenchLake Tanganyika ranks second only to Baikal in freshwater volume and depth, yet stretches farther than any other freshwater lake. Shared by Tanzania, the Democratic Republic of th…
  22. South America’s largest lake is a slightly brackish Andean seaLake Titicaca straddles Peru and Bolivia atop the Altiplano and is often called the world’s highest navigable lake. It leads South America in both volume and surface area even tho…
  23. The world’s largest desert lake has no river outletLake Turkana, mostly in northern Kenya with a tip in Ethiopia, is Earth’s largest permanent desert lake and its largest alkaline lake. By volume it ranks fourth among salt lakes a…
  24. Iran’s great salt lake shrank to a tenth of its former selfLake Urmia in Iranian Azerbaijan was once West Asia’s largest lake and the world’s sixth-largest saltwater body. By late 2017 drought, river dams, and groundwater pumping had cut …
  25. Turkey’s largest lake is a soda sea 451 metres deepLake Van in eastern Anatolia is Turkey’s largest lake—a saline soda basin spanning 3,755 square kilometres at 1,640 metres elevation. It averages 171 metres deep and reaches 451 m…
  26. Africa’s largest lake lives mostly on rainfall, not riversLake Victoria covers about 59,947 square kilometres: Africa’s largest lake, the world’s largest tropical lake, and second only to Superior among freshwater surfaces. Tanzania hold…
  27. Ghana’s Akosombo Dam made the largest reservoir by areaLake Volta, entirely inside Ghana, covers 8,502 square kilometres behind Akosombo Dam—the world’s largest artificial reservoir by surface area. From Yapei south to the dam runs ab…
  28. A hidden Antarctic lake may have been sealed for millions of yearsLake Vostok, largest of Antarctica’s 675 known subglacial lakes and sixteenth worldwide by area, lies beneath Russia’s Vostok Station under 3,488 metres of East Antarctic ice. Cli…
  29. Canada’s prairie inland sea drains four provinces toward Hudson BayLake Winnipeg covers 24,514 square kilometres in Manitoba—Earth’s twelfth-largest lake and Canada’s sixth-largest freshwater body. Its watershed is the country’s largest lake catc…
  30. Siberia’s eastern great river is Russia’s longest entirely domestic runThe Lena runs 4,294 kilometres from the Baikal Mountains to the Arctic—eleventh-longest on Earth and the longest river wholly inside Russia. With the Ob and Yenisey it forms Siber…
  31. A volcanic island arc fences the Caribbean from the AtlanticThe Lesser Antilles swing from the Virgin Islands east of Puerto Rico through the Leeward and Windward chains toward South America, then west via the Leeward Antilles off Venezuel…
  32. An Arctic sea that thaws for only two monthsThe Kara Sea, a shelf of the Arctic Ocean north of Siberia, spans roughly 1,450 by 970 kilometres and about 880,000 square kilometres, yet stays ice-bound for all but two months. …
  33. Australia’s lowest point is a lake that usually isn’t wetKati Thanda–Lake Eyre, about 700 kilometres north of Adelaide, is the continent’s largest ephemeral endorheic lake, sprawling over 9,000 square kilometres when it fills. Most year…
  34. Hanseatic sailors named this sea a cat’s narrow gateThe Kattegat covers roughly 24,000 square kilometres between Jutland, Zealand’s Danish Straits, and Sweden’s west coast, funneling Baltic outflow toward the Skagerrak. Dutch skipp…
  35. Five nations share the world’s second-largest parklandThe Kavango–Zambezi Transfrontier Conservation Area stitches Angola, Botswana, Namibia, Zambia, and Zimbabwe into about 520,000 square kilometres—the planet’s second-largest natur…
  36. A missed rhino sighting created India’s great grassland parkKaziranga National Park hugs the Brahmaputra in Assam across about 378 square kilometres of tall elephant grass, marsh, and moist forest. Mary Curzon’s 1904 failure to spot a rhin…
  37. Germany’s shortcut saves ships 460 kilometres around JutlandThe Kiel Canal—Nord-Ostsee-Kanal, once Kaiser-Wilhelm-Kanal—cuts 98 kilometres of freshwater through Schleswig-Holstein, linking the North Sea to the Baltic. Vessels skip a 460-ki…
  38. One peninsula, two states, and names that still disagreeKorea is the East Asian peninsula plus Jeju and lesser islands, politically split near the 38th parallel since 1945 into the Democratic People’s Republic of Korea and the Republic…
  39. Tsushima splits Asia’s busiest short sea between Korea and JapanThe Korea Strait runs about 200 kilometres wide between the Korean Peninsula and southwestern Japan, averaging near 100 metres deep as it ties the East China Sea, Yellow Sea, and …
  40. The 1883 blast was heard nearly 5,000 kilometres awayKrakatoa’s caldera sits in Indonesia’s Sunda Strait between Java and Sumatra. Explosions on 26–27 August 1883 ranked among history’s fiercest volcanic events, flinging about 25 cu…
  41. India’s third-longest river starts above MahabaleshwarThe Krishna—also Krishnaveni—runs about 1,400 kilometres across the Deccan, ranking third in length after the Ganga and Godavari and fourth by inflow and basin area. It rises near…
  42. Asia’s long northern wall of Tibet has only two roadsThe Kunlun Mountains run more than 3,000 kilometres along the Tibetan Plateau’s northern rim, south of the Tarim Basin. Across that entire length only two highways—219 and 109—cro…
  43. Fifty-six volcano tops fence Okhotsk from the PacificThe Kuril Islands stretch about 1,300 kilometres from Hokkaido toward Kamchatka—fifty-six mostly volcanic summits that divide the Sea of Okhotsk from the North Pacific. Russia has…
  44. Japan’s southern main island is named for nine old provincesKyushu, literally “nine provinces,” is Japan’s third-largest and southernmost main island, covering about 36,782 square kilometres—roughly Taiwan’s size and thirty-seventh worldwi…
  45. A young ocean arm helps drive North Atlantic deep waterThe Labrador Sea opens between Labrador and Greenland as a North Atlantic arm born when North America and Greenland plates split from about 60 to 40 million years ago. Cold, dense…
  46. A warm Nile lake once renamed for both a prince and a dictatorLake Albert, Africa’s sixth-largest lake, stretches about 160 by 30 kilometres along the Uganda–Congo border in the Albertine Rift. Banyoro still call it Mwitanzige—“locust killer…
  47. Earth’s deepest lake holds more fresh water than any otherLake Baikal plunges to 1,642 metres in southern Siberia, making it the world’s deepest lake and—by volume—the largest body of fresh water on Earth. Its 31,722 square kilometres of…
  48. One Kazakh lake is fresh on one side, salty on the otherLake Balkhash covers about 16,400 square kilometres in southeastern Kazakhstan—Asia’s great sickle-shaped endorheic basin and the world’s fifteenth-largest lake. A narrow strait s…
  49. A Sahel lake that once spanned 28,000 square kilometresLake Chad sits where Nigeria, Niger, Chad, and Cameroon meet, draining a catchment larger than a million square kilometres. Nineteenth-century travelers still saw about 28,000 squ…
  50. England’s highest fells sit inside a 1951 national parkThe Lake District in Cumbria shelves sixteen major lakes beneath Scafell Pike (978 metres), Helvellyn (950), and Skiddaw (931)—England’s top three summits. The 2,362-square-kilome…
  51. A 2,000-kilometre plateau wedges Arabia against EurasiaThe Iranian—or Persian—Plateau is a geological high spanning parts of Central, South, and West Asia plus the South Caucasus, wedged between the Arabian and Indian plates on the Eu…
  52. An ice-bridged island whose woods fell below Europe’s averageIreland is a North Atlantic island split geopolitically between the Republic of Ireland—about five-sixths of the land—and Northern Ireland in the United Kingdom. Low mountains rin…
  53. A shallow sea between two islands powers trade and turbinesThe Irish Sea covers roughly 46,007 square kilometres between Ireland and Great Britain, joining the Celtic Sea via St George’s Channel and Scotland’s Inner Seas via the North Cha…
  54. Myanmar’s Road to Mandalay begins where two rivers meetThe Irrawaddy—officially Ayeyarwady—is Myanmar’s chief river and commercial waterway, about 1,350 miles (2,170 kilometres) long through the country’s centre. Its Pali-rooted name …
  55. A Crown Dependency between islands runs on tax and mythMannin—or Ellan Vannin in Manx—sits as a self-ruling dependency of the British Crown in the Irish Sea. Charles III is Lord of Mann; humans have lived there since before 6500 BC, a…
  56. Kyrgyzstan’s “hot lake” is the world’s second-largest mountain lakeIssyk-Kul—Ysyk-Köl, “Hot Lake” in Kyrgyz—is an endorheic saline lake in eastern Kyrgyzstan’s western Tian Shan. Eighth-deepest on Earth and second-largest mountain lake after Titi…
  57. One volcanic island holds half of Indonesia’s peopleJava, a Greater Sunda island between the Indian Ocean and the Java Sea, is Earth’s most populous island—about 159.2 million people, roughly 56% of Indonesia. The Australian Plate …
  58. A two-million-year volcano became Korea’s subtropical holiday isleJeju Island, South Korea’s largest at 1,833.2 square kilometres (1.83% of national area), sits in the Korea Strait about 82.8 kilometres south of the peninsula. Formed by a submar…
  59. A 251-kilometre “descending” river named two modern politiesThe Jordan River—Nahr al-ʾUrdunn, Nəhar hayYardēn, also Nahr Al-Sharieat—runs about 251 kilometres southward, passing through the Sea of Galilee and ending in the Dead Sea. Jordan…
  60. Surveyors’ “K2” became the mountaineers’ savage kingK2—Mount Godwin-Austen—rises 8,611 metres, Earth’s second summit after Everest’s 8,849. Straddling Pakistan-administered Gilgit-Baltistan and China’s Taxkorgan in the Karakoram, i…

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