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Nature

2,233 cards. Each one is a 40-second story with a five-minute read behind it. Page 25 of 38.

1441. A French euro island once cycled through Bourbon namesRéunion, a French overseas department in the Mascarene Islands, sits about 679 kilometres east of Madagascar and 175 southwest of Mauritius. Uninhabited before seventeenth-century…
1442. The world’s northernmost tropical sea is a rifting inletThe Red Sea separates Arabia from Africa as an Indian Ocean inlet via Bab-el-Mandeb and the Gulf of Aden, with Sinai, Aqaba, and Suez—and the canal—at its north. Roughly 438,000 s…
1443. Europe’s castle river still starts in a Swiss alpine cantonThe Rhine rises in Graubünden’s Alps, brushes Liechtenstein and Austria, then sketches Swiss–German and Franco–German borders before crossing the Netherlands to the North Sea. Abo…
1444. Nine in ten quakes crowd a 40,000-kilometre Pacific beltThe Ring of Fire—also Rim, Girdle, or Circum-Pacific belt—is a tectonic horseshoe of quakes and volcanoes about 40,000 kilometres long and up to 500 wide around most of the Pacifi…
1445. The Rio Grande is a high desert border few boats can useKnown as Río Bravo del Norte in Mexico and Tó Ba’áadi in Navajo, the Rio Grande runs 1,896 miles—about 3,051 kilometres—making it the fourth-longest river system in the United Sta…
1446. The Amazon’s blackwater giant begins as Colombia’s GuainíaThe Rio Negro—Guainía in its upper Colombian reach—is the Amazon’s largest left-bank tributary, delivering about fourteen percent of basin water. It is the world’s largest blackwa…
1447. The Rockies are a shallow-slab orogeny, not a single wallNorth America’s largest mountain system, the Rockies run about 3,000 miles—4,800 kilometres—from northern Western Canada to New Mexico. They rose mainly 55 to 80 million years ago…
1448. Earth’s southernmost sea hides a half-kilometre shelfThe Ross Sea, a deep Southern Ocean bay between Victoria Land and Marie Byrd Land, is the planet’s southernmost sea, named for James Clark Ross’s 1841 visit. Ice covers it most of…
1449. South Africa’s longest river starts as Lesotho’s SenquThe Orange River runs 2,432 kilometres from Drakensberg heights above 3,000 metres down to the Atlantic between Oranjemund and Alexander Bay. Its catchment, counting the Vaal, cov…
1450. South America’s paddle-place river ranks third by dischargeAt 2,140 kilometres the Orinoco is among South America’s longest rivers, yet its real claim is volume: about 39,000 cubic metres per second at the delta, third worldwide. The Orin…
1451. Yellowstone invented a park idea the IUCN later countedA national park is government-owned land set aside for outstanding natural, historic, or cultural value. The United States created Yellowstone in 1872 as a “public park or pleasur…
1452. A river just 74 kilometres long ranks fourth in Europe for flowThe Neva runs only 74 kilometres from Lake Ladoga, the lake's single outlet, to Neva Bay on the Gulf of Finland. Yet it moves more water than almost any river in Europe, links can…
1453. Papua New Guinea’s crescent isle hides national volcano recordsNew Britain is the Bismarck Archipelago’s largest island, a volcanic crescent in Papua New Guinea separated from New Guinea by the Solomon Sea’s Dampier and Vitiaz Straits. German…
1454. A sunken continent scrap is still a French Pacific collectivityNew Caledonia, a French sui generis collectivity 1,210 kilometres east of Australia and 16,100 kilometres from Metropolitan France, covers 18,575 square kilometres of Melanesian i…
1455. Earth’s second-largest island still splits two nationsNew Guinea covers about 785,753 square kilometres—the world’s second-largest island—with the planet’s third-largest remaining rainforest and unmatched island plant diversity. Torr…
1456. Norse ruins mark North America’s eastern island edgeNewfoundland, the large island of Canada’s Newfoundland and Labrador province, holds over 90 percent of the province’s people on only 29 percent of its land—about 60 percent crowd…
1457. A Maasai cowbell caldera draws three-quarters of a million visitorsNgorongoro Conservation Area, a UNESCO World Heritage site in Tanzania’s Crater Highlands 180 kilometres west of Arusha, is named for a volcanic caldera whose Maasai name imitates…
1458. North America’s strongest waterfall is three falls in oneNiagara Falls joins Horseshoe Falls on the Ontario–New York line with American Falls and Bridal Veil Falls wholly in New York. Together they hold North America’s highest waterfall…
1459. West Africa’s great crescent was a puzzle for centuriesThe Niger River sweeps about 4,180 kilometres through West Africa, draining some 2,117,700 square kilometres from the Guinea Highlands near Sierra Leone through Mali and Niger to …
1460. China’s densest farmland is a Yellow River silt machineThe North China Plain is China’s largest alluvial plain—a late Paleogene–Neogene rift basin later sheeted by Yellow River silt. Yanshan, Taihang, and Dabie ranges frame it; the mi…
1461. Three-quarters of New Zealanders share Māui’s fish islandNew Zealand’s North Island covers 113,729 square kilometres—43 percent of the country—yet held about 4,067,400 people in June 2025, some 76 percent of all residents. Cook Strait p…
1462. A shallow shelf sea that shaped Europe's trade, wars and dikesThe North Sea washes Britain’s east coast and the shores of Norway, Denmark, Germany, the Netherlands, Belgium, and France across more than 970 by 580 kilometres. About 750,000 sq…
1463. The world’s largest national park has almost no residentsNortheast Greenland National Park is Earth’s largest national park and the tenth-largest protected area of any kind—expanded in 1988 after a 1974 founding to swallow vast ice and …
1464. America’s Pacific commonwealth began Remote Oceania’s first voyageThe Commonwealth of the Northern Mariana Islands joins fourteen northern Mariana islands as a U.S. unincorporated territory—183.5 square miles holding 47,329 people in 2020, mostl…
1465. A two-kilometre-deep sea keeps Norway's coast free of ice all yearOff Norway's northwestern coast, with the North Sea to its south and the Greenland Sea to its north, the Norwegian Sea drops far beyond any continental shelf, averaging about two …
1466. Europe’s eastern tip is a twin Arctic island once closed for warNovaya Zemlya, Russian for 'new land', is a pair of long Arctic islands dividing the Barents Sea from the Kara Sea, and Cape Flissingsky on the northern one is usually counted as …
1467. Siberia’s Ob and Irtysh forge the world’s seventh-longest systemThe Ob forms in western Siberia where the Biya and Katun meet from the Altai, then partners with the Irtysh in a combined course measuring 5,410 kilometres—ranked seventh among th…
1468. Jefferson’s ‘most beautiful river’ is now among America’s most pollutedThe Ohio River runs 981 miles (1,579 kilometres) from Pittsburgh to the Mississippi at Cairo, Illinois, drawing a climatic and cultural line between Midwest and South. Seneca Ohi:…
1469. The Atlantic’s spine is Earth’s longest mountain chain’s heartThe Mid-Atlantic Ridge is a divergent plate boundary on the Atlantic floor and part of the planet’s longest mountain range. North of the Azores triple junction it parts North Amer…
1470. The Philippines’ second island is a land of lakes by nameMindanao is the Philippines’ second-largest island after Luzon and the world’s seventh-most populous. The 2020 census counted 26,252,442 people on the main island and more across …
1471. Ojibwe’s Great River still splits American call lettersThe Mississippi drains the United States’ largest basin and ranks second in U.S. length after the Missouri. From Lake Itasca in northern Minnesota it runs about 2,340 miles (3,766…
1472. America’s longest river starts at Three Forks MontanaThe Missouri is the United States’ longest river, running 2,341 miles (3,767 kilometres) from Montana’s Centennial Mountains to the Mississippi north of St. Louis. Its semi-arid b…
1473. North America’s smallest desert holds its lowest pointThe Mojave Desert lies in the dry lee of the southern Sierra Nevada and Transverse Ranges, mainly in southeastern California and southwestern Nevada with scraps of Arizona and Uta…
1474. Europe’s roof outside the Caucasus still has two ownersMont Blanc rises 4,807.3 metres on the Franco-Italian border—the highest peak in Europe outside the Caucasus, Europe’s second-most prominent mountain after Elbrus, and the world’s…
1475. Europe’s true high point is a dormant twin-summit volcanoMount Elbrus, a dormant stratovolcano in Russia’s Kabardino-Balkaria, rises 5,642 metres—highest in Russia and Europe, Eurasia’s tallest volcano, and the world’s tenth-most promin…
1476. Sicily’s restless giant slides seaward fourteen millimetres a yearMount Etna, an active stratovolcano on Sicily’s east coast between Messina and Catania, stood 3,403 metres high as of September 2024—Italy’s tallest peak south of the Alps. Coveri…
1477. A 2020 survey fixed Earth’s roof at 8,848.86 metresMount Everest—Sagarmāthā in Nepali, Qomolangma in Tibetan—is Earth’s highest peak above sea level, on the China–Nepal border in the Mahalangur Himal. A 2020 joint Nepalese–Chinese…
1478. Japan’s holy cone last erupted while Edo still ruledMount Fuji, an active stratovolcano on Honshu, rises 3,776.24 metres—Japan’s highest mountain, Asia’s second-highest island volcano after Sumatra’s Kerinci, and Earth’s seventh-hi…
1479. Four great Asian rivers rise near an unclimbed holy peakMount Kailash rises 6,638 metres in Ngari Prefecture on Tibet’s western plateau, in the Gangdise Shan of the Transhimalaya near the China–India–Nepal tripoint. Within about sixty …
1480. Africa’s second summit named a whole country KenyaMount Kenya, just 16.5 kilometres south of the equator and about 150 kilometres north-northeast of Nairobi, is Africa’s second-highest mountain. Batian tops 5,199 metres, Nelion 5…
1481. Africa’s free-standing roof was renamed Freedom PeakMount Kilimanjaro in Tanzania stands 5,895 metres above sea level and about 4,900 metres above its plateau—Africa’s highest mountain, the world’s highest free-standing peak, the E…
1482. Mainland Australia’s roof was named for a Polish heroMount Kosciuszko, 2,228 metres on the Snowy Mountains’ Main Range in New South Wales, is mainland Australia’s highest peak. Polish explorer Paweł Edmund Strzelecki named it on 12 …
1483. Greece’s first national park is still the gods’ addressMount Olympus, an Aegean massif on the Thessaly–Macedonia border about 80 kilometres southwest of Thessaloniki, holds 52 peaks and deep gorges. Mytikas—“nose”—tops Greece at 2,917…
1484. A Caribbean ‘bald mountain’ killed a city in minutesMount Pelée—“bald” or “peeled” mountain in French—is an active stratovolcano at Martinique’s northern tip on the Lesser Antilles arc. Its 8 May 1902 eruption wiped out Saint-Pierr…
1485. A forgotten Luzon peak dimmed the planet in 1991Mount Pinatubo, an active stratovolcano on the Zambales–Tarlac–Pampanga tripoint in Luzon, was so forest-cloaked that few knew its history until unrest in early 1991. On 15 June 1…
1486. A lateral blast shaved 1,300 feet off America’s FujiyamaMount St. Helens in Skamania County, Washington—Lawetlat’la to the Cowlitz—erupted on 18 May 1980 in the United States’ costliest volcanic disaster. A magnitude 5.1 quake triggere…
1487. China’s sunrise mountain has been worshipped three millenniaMount Tai, north of Tai’an in Shandong, is the province’s high point and the easternmost of China’s Five Sacred Mountains—linked to sunrise, birth, and renewal. Jade Emperor Peak …
1488. Europe’s only mainland volcano of the last centuryMount Vesuvius, a somma–stratovolcano on the Gulf of Naples about nine kilometres east of the city, is the one volcano on mainland Europe that has erupted within the past century.…
1489. An Indian Ocean arm nearly as long as Madagascar itselfThe Mozambique Channel is the Indian Ocean arm between Madagascar and Mozambique, about 1,700 kilometres long and 419 kilometres across at its narrowest. Comoro Islands sit in the…
1490. Australia’s longest river is entirely New South Wales waterThe Murray River runs 2,508 kilometres from the Australian Alps across inland plains—Australia’s longest stream, with five of the next six longest rivers among its tributaries. Od…
1491. Over 25,000 islands sit between two great oceansThe Malay Archipelago—also Insulindia or the Indo-Australian Archipelago—spans the waters between Mainland Southeast Asia and Australia. With more than 25,000 islands it is the wo…
1492. Asia’s mainland ends at a flower of peninsular tipThe Malay Peninsula runs roughly north–south through Mainland Southeast Asia until Tanjung Piai, the continent’s southernmost mainland point. Peninsular Malaysia, southern Thailan…
1493. Nutmeg and clove once drew Europe to four spice peaksThe Maluku Islands—Moluccas—lie in eastern Indonesia on the Halmahera plate inside the Molucca Sea Collision Zone, a West Melanesian crossroads. Europeans once called them the Spi…
1494. An Amazon-mouth island as large as SwitzerlandMarajó, the chief island of Brazil’s Marajó Archipelago in Pará, covers about 40,100 square kilometres—roughly Switzerland’s size—spanning up to 295 by 200 kilometres at the Amazo…
1495. Earth’s deepest trench presses harder than a thousand atmospheresThe Mariana Trench, a crescent about 2,550 by 69 kilometres in the western Pacific east of the Mariana Islands, holds Earth’s deepest known seafloor at 10,935 ± 6 metres in Challe…
1496. A French Caribbean island once called the land of flowersMartinique, a Lesser Antilles island in the eastern Caribbean, is a French overseas department, region, and single territorial collectivity—inside the EU as an outermost region ye…
1497. Earth’s largest active volcano still breathes every few decadesMauna Loa—“Long Mountain”—is one of five volcanoes building Hawaiʻi’s Big Island and Earth’s largest active volcano by mass and volume, though submarine Tamu Massif and Pūhāhonu o…
1498. France’s smallest overseas department wraps a vast lagoonMayotte, a French overseas department and region in the northern Mozambique Channel between Madagascar and Mozambique, covers only about 374 square kilometres—far smaller than Mar…
1499. A nearly landlocked sea once dried for six hundred millenniaThe Mediterranean Sea, cupped between Europe, Asia, and Africa across about 2.5 million square kilometres—0.7 percent of the world ocean—links to the Atlantic only through the Str…
1500. Asia’s third-longest river starts as Tibet’s Za QuThe Mekong ranks as the world’s twelfth-longest river and Asia’s third, running an estimated 4,909 kilometres from the Tibetan Plateau through China, Myanmar, Laos, Thailand, Camb…

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