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Nature

2,233 cards. Each one is a 40-second story with a five-minute read behind it. Page 24 of 38.

1381. North America’s second-mightiest river drains the Great Lakes to the seaThe St. Lawrence carries Great Lakes water northeast from Lake Ontario to the Gulf of St. Lawrence, forming part of the Canada–United States border. Its discharge ranks second in …
1382. Ocean freighters reach Duluth through a binational ladder of locksThe St. Lawrence Seaway threads rivers, canals, and locks from Montreal to Lake Erie so Atlantic ships can sail inland as far as Duluth on Lake Superior. Opened in 1959 at a cost …
1383. Only thirty-three kilometres of water keep Britain from the ContinentAt its narrowest the Strait of Dover spans just 20.6 miles—33.2 kilometres—between England and France, the English Channel’s tightest pinch before the North Sea. On clear days the…
1384. Fourteen kilometres of water separate Europe from Africa hereThe Strait of Gibraltar pinches the Atlantic into the Mediterranean and Europe toward Africa. At its narrowest the gap is only 7.7 nautical miles—14.2 kilometres—and ferries can c…
1385. Magellan’s passage still threads five hundred seventy kilometres of ChileThe Strait of Magellan separates mainland South America from Tierra del Fuego for about 570 kilometres, narrowing to just two kilometres at its tightest point. Ferdinand Magellan’…
1386. One shallow choke point moves a quarter of world tradeBetween the Malay Peninsula and Sumatra, a waterway only a few kilometres wide at its tightest funnels ships between the Indian and Pacific oceans. In 2008 more than ninety-four t…
1387. Indonesia’s spider-shaped island is the world’s eleventh largestSulawesi—once Celebes to Portuguese mapmakers—spreads four peninsulas like a misshapen K across some 186,064 square kilometres, ranking eleventh among the world’s islands. Gulfs o…
1388. Indonesia’s largest wholly owned island has lost half its rainforestSumatra covers about 482,287 square kilometres—the sixth-largest island on Earth and the biggest lying entirely inside Indonesia. In roughly thirty-five years it has lost almost h…
1389. Earth’s largest mangrove forest spans ten thousand square kilometresWhere the Ganges, Brahmaputra, and Meghna meet the Bay of Bengal, the Sundarbans spread about 10,277 square kilometres of mangrove, mudflat, and tidal creek—the world’s largest ma…
1390. Norway’s Arctic islands sit halfway from Europe to the North PoleSvalbard lies between mainland Norway and the North Pole, spanning 74° to 81° north and 10° to 35° east across 61,022 square kilometres. Spitsbergen alone covers 37,673 square kil…
1391. Alexander’s farthest Alexandria still sits on Central Asia’s JaxartesThe Syr Darya—ancient Jaxartes—runs about 2,256 kilometres from the Tian Shan toward the remnants of the Aral Sea. Soviet irrigation later diverted so much of this river and the A…
1392. Dust from China's Taklamakan Desert helps seed clouds over the western USWinds carry Taklamakan dust across the Pacific, where its K-feldspar grains are especially good at triggering ice in clouds over the western United States. The desert itself, slig…
1393. Two thousand kilometres of Pacific water separate Australia from New ZealandThe Tasman Sea is a South Pacific marginal sea between Australia and New Zealand, spanning roughly 2,000 kilometres across and 2,800 kilometres from north to south. Abel Tasman’s …
1394. Bass Strait isolated Tasmania’s Aboriginal peoples for eleven millenniaTasmania sits 240 kilometres south of mainland Australia across Bass Strait, an island state cut off when seas rose. About 11,700 years ago that flooding isolated Aboriginal Tasma…
1395. Algeria’s Plateau of Rivers holds a lunar forest of sandstoneTassili n’Ajjer—Berber for Plateau of rivers—covers about 72,000 square kilometres of southeastern Algerian Sahara near Libya and Niger. UNESCO listed the park and biosphere reser…
1396. Tian Shan glaciers are melting nearly four times faster than averageSince 1961 the Tian Shan has lost 27% of its glacier ice, about 5.4 billion tons, against a global average of 7%, and half of what remains may be gone by 2050. These Heavenly Moun…
1397. The Tibetan Plateau holds more fresh ice than anywhere outside the polesNicknamed the Third Pole, the Tibetan Plateau's tens of thousands of glaciers form a water tower that feeds the Yellow, Yangtze and Mekong, Asia's three longest rivers. It spans s…
1398. Magellan named Tierra del Fuego after fires he feared hid an ambushSailing past in 1520, Magellan saw countless fires along the shore and suspected warriors waiting in the forests. The blazes were Indigenous hearths, perhaps even lit inside canoe…
1399. Sumerians called the Tigris the swift river, unlike the lazy EuphratesThe Tigris got its Sumerian name, probably meaning the swift river, by contrast with its slower neighbour, whose sluggish water dropped more silt and raised its bed higher. Runnin…
1400. Brazil’s longest wholly domestic river runs nearly three thousand kilometresThe São Francisco stretches 2,914 kilometres entirely inside Brazil—longer than any other river that never leaves the country. Rising in Minas Gerais’s Canastra range, it drains m…
1401. Australia gazetted a national park seven years after YellowstoneRoyal National Park covers 151 square kilometres about 29 kilometres south of Sydney’s CBD in Sutherland Shire and Illawarra country. Acting Premier Sir John Robertson had it proc…
1402. Japan’s southwest arc runs from Kyushu toward TaiwanThe Ryukyu or Nansei Islands form a Japanese chain stretching southwest from Kyushu toward Taiwan, split administratively between Kagoshima Prefecture’s Satsunan group and Okinawa…
1403. The Sahara is Earth’s largest hot desert by farSpanning about 9.2 million square kilometres across North Africa, the Sahara is the world’s largest hot desert and the third-largest desert overall after Antarctica and the Arctic…
1404. Arabic “shore” names Africa’s Sahara-edge transition beltThe Sahel—from Arabic sāḥil, coast or shore—is the hot semi-arid transition between Sahara desert and wetter Sudanian savannas. It stretches about 5,900 kilometres from Atlantic t…
1405. Sakhalin’s name means black, after the Amur’s mouthSakhalin, Russia’s great Northeast Asian island, lies only 6.5 kilometres from Khabarovsk Krai at its north and about 40 kilometres from Hokkaido at its south. The name comes from…
1406. Asia’s wild Salween drops more than five kilometresThe Salween runs about 3,289 kilometres from the Tibetan Plateau to the Andaman Sea, mostly through southwest China and eastern Myanmar, briefly edging Thailand. Extreme elevation…
1407. Mediterranean’s second island still speaks pre-Latin namesSardinia, Italy’s autonomous second-largest Mediterranean island after Sicily, lies about 200 kilometres west of the peninsula. Its name appears as ŠRDN on the Phoenician Nora Sto…
1408. The only named sea with no coast is a seaweed gyreThe Sargasso Sea is a North Atlantic region boxed by four currents—the Gulf Stream, North Atlantic Current, Canary Current, and North Atlantic Equatorial Current—forming a clockwi…
1409. Mainland Northern Europe’s roof is Norway’s GaldhøpiggenThe Scandinavian Mountains, or Scandes, run the length of the peninsula: western walls plunge into North Sea and Norwegian Sea fjords, while the chain eases northeast toward Finla…
1410. Europe’s fishiest shallows were once called Maeotis SwampThe Sea of Azov is an Eastern European shelf sea linked to the Black Sea by the roughly four-kilometre Strait of Kerch, sometimes treated as the Black Sea’s northern lobe. Don, Ku…
1411. A nearly tideless marginal sea has a contested English nameThe Sea of Japan sits between the Japanese archipelago, Sakhalin, Korea, and Russia’s Far East, almost sealed from the Pacific and thus nearly tideless like the Mediterranean. Hig…
1412. Turkey’s marble sea is the Black Sea’s front porchThe Sea of Marmara lies entirely inside Turkey, linking Black Sea to Aegean through the Bosporus and Dardanelles while splitting the country’s European and Asian shores. Greeks ca…
1413. Amur freshwater helps freeze a Pacific factory of lifeThe Sea of Okhotsk covers about 1.58 million square kilometres between Kamchatka, the Kurils, Hokkaido, Sakhalin, and Siberia, averaging 859 metres deep and plunging to 3,372. Amu…
1414. A West African river is managed jointly by four nationsThe Senegal River’s Serer folk etymology joins Seen—linked to the supreme deity Roog Seen—with O Gal, “body of water.” Headwaters Bakoye and Bafing rise in Guinea, meet at Bafoula…
1415. Serengeti’s “endless plains” name may be a tourist mythSerengeti National Park covers 14,763 square kilometres of northern Tanzania savanna—over 15,000 if broader grassland figures are counted—and was established in 1940. It hosts the…
1416. Japan’s Inland Sea stitches three main islands togetherThe Seto Inland Sea separates Honshu, Shikoku, and Kyushu while linking the Pacific to the Sea of Japan and feeding Osaka Bay’s industrial ports. Eleven prefectures touch its shor…
1417. Japan’s smallest main island still means “four provinces”Shikoku—literally “four provinces”—is Japan’s smallest and least populated main island, about 225 kilometres long and 50–150 wide, with roughly 3.5 million residents across Ehime,…
1418. Europe’s tallest active volcano crowns a triangular islandSicily, Italy’s largest island and a full region, holds over 4.7 million people—about 1.2 million around Palermo. Mount Etna, currently about 3,403 metres high, is Europe’s talles…
1419. California’s snowy sawblade rose less than five million years agoThe Sierra Nevada runs about 400 miles between California’s Central Valley and the Great Basin, mostly in California save Nevada’s Carson Range spur. Mount Whitney at 14,505 feet …
1420. Egypt’s only Asian land was once turquoise mining countryThe Sinai Peninsula is Egypt’s sole West Asian territory, a Mediterranean-to-Red Sea land bridge between Africa and Asia. Ancient Egyptians called it Biau, “Mining Country,” and K…
1421. Skagen’s “straight waterway” once gated the whole BalticThe Skagerrak runs between Denmark’s North Jutland, Norway’s east coast, and Sweden’s west, linking North Sea to Kattegat. About 240 kilometres long and 80–140 wide, it likely joi…
1422. Australia’s Outback is remoteness, not just red desertAustralians treat the Outback as more remote than “the bush,” yet it stretches from northern monsoon coasts to southern temperate edges and the arid red centre. Low population den…
1423. Pacific Coast Ranges run from Alaska into MexicoOfficially the Pacific Mountain System in the United States, these ranges rim western North America from Alaska to northern and central Mexico. They form only the western belt of …
1424. Earth’s biggest ocean covers nearly a third of the planetDefined with an Antarctic southern border, the Pacific spans about 165 million square kilometres—roughly forty-six percent of Earth’s water surface and thirty-two percent of the w…
1425. A shallow strait once linked India and Sri Lanka as dry landPalk Strait sits between Tamil Nadu’s Pamban Island and Sri Lanka’s Mannar Island, joining the Bay of Bengal to the Laccadive Sea. Ram Setu—Adam’s Bridge—chains low islands and sh…
1426. Quechua plains feed a continent of grain and cattleThe Pampas—from Quechua pampa, plain—cover more than 1.2 million square kilometres across Argentine provinces, all of Uruguay, and Brazil’s Rio Grande do Sul. Temperate rains of r…
1427. Eighty-two kilometres of locks still beat Cape HornThe Panama Canal cuts 82 kilometres across the Isthmus, linking Caribbean and Pacific trade without rounding South America’s tip. Locks raise ships into Gatun Lake, an artificial …
1428. South America’s second-longest river once hid seven fallsThe Paraná runs some 4,880 kilometres through Brazil, Paraguay, and Argentina—second on the continent only to the Amazon—before joining the Paraguay and later the Uruguay to form …
1429. Parks began as aristocratic hunting walls, not playgroundsA park can be planted city green, countryside recreation, or a vast wildlife reserve spanning hundreds of thousands of square kilometres. Medieval English deer parks, though, were…
1430. Guangzhou’s Pearl is a short name for a vast delta systemIn southern China the Pearl River label covers both a short, wide distributary north of Guangzhou and the wider Guangdong watershed of the Xi, Bei, and Dong rivers. Those channels…
1431. A shallow inland sea hinges on the Strait of HormuzThe Persian Gulf—also called the Arabian Gulf—is a West Asian mediterranean sea between the Arabian Peninsula and Iran, tied to the Indian Ocean through the Strait of Hormuz. Abou…
1432. The world’s largest sea sits on its own tectonic plateEast of the Philippines, the Philippine Sea covers an estimated five million square kilometres—the largest sea on Earth—floored by the Philippine Sea Plate. Island arcs from the R…
1433. Kiribati once closed a California-sized ocean sanctuaryThe Phoenix Islands Protected Area in central Pacific Kiribati spans about 408,250 square kilometres—11.34 percent of the nation’s EEZ—ranking among Earth’s largest marine reserve…
1434. Thailand’s largest island was once called Junk CeylonPhuket province packs Thailand’s biggest island plus thirty-two smaller ones into just 547 square kilometres—the country’s second-smallest province—off the Andaman coast and linke…
1435. China’s biggest freshwater lake can shrink to a puddlePoyang Lake in Jiangxi’s Jiujiang Prefecture is China’s largest freshwater lake, fed by the Gan, Xin, and Xiu rivers before draining north into the Yangtze. A normal year averages…
1436. Rich Port was Columbus’s San Juan Bautista firstPuerto Rico, a U.S. unincorporated commonwealth about 1,600 kilometres southeast of Miami, sits between the Dominican Republic and the U.S. Virgin Islands. Indigenous Ortoiroid, S…
1437. Equatorial snow once made Europe mock CarstenszPuncak Jaya—Carstensz Pyramid—rises 4,884 metres on New Guinea, the highest island summit on Earth and the top of Indonesia and Oceania. Often counted among the Seven Summits, it …
1438. Andorra sits inside a nearly 500-kilometre mountain wallThe Pyrenees stretch almost 500 kilometres from the Cantabrian junction to Cap de Creus on the Mediterranean, peaking at Aneto’s 3,404 metres in Huesca, Spain. The main crest most…
1439. China’s largest lake is salty, alkaline, and sky-blue namedQinghai Lake—China’s biggest lake and the namesake of Qinghai Province—is an alkaline endorheic salt lake on the Tibetan Plateau. In 2008 it covered about 4,317 square kilometres,…
1440. The world’s widest “river” is mostly a silver estuaryThe Río de la Plata—River Plate—forms where the Uruguay and Paraná meet at Punta Gorda, then funnels about 290 kilometres to the Atlantic while widening from roughly two kilometre…

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