{"id":132683,"date":"2024-09-18T19:16:48","date_gmt":"2024-09-18T13:46:48","guid":{"rendered":"https:\/\/pwonlyias.com\/stage\/?post_type=current-affairs&#038;p=132683"},"modified":"2024-09-19T16:51:04","modified_gmt":"2024-09-19T11:21:04","slug":"coelacanth-fish","status":"publish","type":"current-affairs","link":"https:\/\/pwonlyias.com\/stage\/current-affairs\/coelacanth-fish","title":{"rendered":"Coelacanth Fish"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Researchers have discovered a <\/span><b>well-preserved Devonian coelacanth fish (Ngamugawi Wirngarri&#8217;)<\/b><span style=\"font-weight: 400;\">\u00a0 in Western Australia, shedding light on the connection between plate tectonics and evolutionary changes.\u00a0<\/span><\/p>\n<h2><span style=\"font-size: 18pt;\"><b>About Coelacanths Fish<\/b><\/span><\/h2>\n<ul>\n<li><b>Location<\/b><span style=\"font-weight: 400;\">: It live off the coasts of <\/span><b>southern Africa and Indonesia <\/b><span style=\"font-weight: 400;\">and can reach up to <\/span><b>two metres in length\u00a0<\/b><\/li>\n<li><b>Deep-sea fish: It\u00a0 can live<\/b><span style=\"font-weight: 400;\"> in <\/span><b>depths up to 2,300 feet<\/b><span style=\"font-weight: 400;\"> below the surface.<\/span><\/li>\n<li><b>\u201cLobe-finned\u201d fish:<\/b> <b>It <\/b><span style=\"font-weight: 400;\">means they have <\/span><b>robust bones in their fins<\/b><span style=\"font-weight: 400;\"> a bit like the<\/span><b> bones in our arms.\u00a0<\/b><\/li>\n<li><b>Old Fossil: It is <\/b><span style=\"font-weight: 400;\">oldest known fossils are <\/span><b>more than 410 million years old\u00a0<\/b>\n<ul>\n<li><b>It is thought to have gone extinct with the dinosaurs<\/b> <b>65 million years ago (End of the Cretaceous period), but<\/b><span style=\"font-weight: 400;\"> found <\/span><b>first off South Africa in 1938<\/b><span style=\"font-weight: 400;\"> and then off the <\/span><b>Comoro Island group northwest of Madagascar in 1952<\/b><\/li>\n<\/ul>\n<\/li>\n<li><b>Coelacanths: <\/b><span style=\"font-weight: 400;\">These are described as<\/span><b> \u201cliving fossils\u201d.<\/b>\n<ul>\n<li><b>Living Fossil \u2192 <\/b><span style=\"font-weight: 400;\">Organism that has <\/span><b>remained unchanged<\/b><span style=\"font-weight: 400;\"> from <\/span><b>earlier geologic times<\/b><span style=\"font-weight: 400;\"> and <\/span><b>whose close relatives are usually extinct.\u00a0<\/b><\/li>\n<li><b>Other Examples <\/b><span style=\"font-weight: 400;\">\u2192 Horseshoe crab and Ginkgo trees\u00a0<\/span><\/li>\n<\/ul>\n<\/li>\n<li><b>Two living species:<\/b> <b>Latimeria chalumnae<\/b><span style=\"font-weight: 400;\"> and <\/span><b>Latimeria menadoensis.<\/b><\/li>\n<li><b>Protection Status:<\/b>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><b>IUCN Status<\/b><span style=\"font-weight: 400;\"> \u2192 Critically Endangered<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"3\"><b>Sulawesi Coelacanth<\/b><span style=\"font-weight: 400;\"> is listed as <\/span><b>\u2018Vulnerable\u2019<\/b><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><b>CITES Status<\/b><span style=\"font-weight: 400;\"> \u2192 <\/span><b>Appendix I<\/b><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p style=\"text-align: center;\"><span class=\"vc_button\"><a href=\"https:\/\/www.pw.live\/batches\/upsc?utm_source=seo+upsc+batch&#038;utm_medium=seo+upsc&#038;utm_campaign=seo&#038;utm_id=upsc\" target=\"_blank\" rel=\"nofollow noopener\">Enroll now for UPSC Online Course<\/a><\/span><\/p>\n<h2><span style=\"font-size: 18pt;\"><b>Recent Findings<\/b><\/span><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Ngamugawi Wirngarri <\/b><span style=\"font-weight: 400;\">\u2192 First fish found in <\/span><b>Gooniyandi Country<\/b><span style=\"font-weight: 400;\"> in Western Australia<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Area Name<\/b><span style=\"font-weight: 400;\"> \u2192 It\u2019s in <\/span><b>Gooniyandi language \u2192 <\/b><span style=\"font-weight: 400;\">Gooniyandi( also Konejandi) are an<\/span><b> Aboriginal Australian people<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Fish Name Means<\/b><span style=\"font-weight: 400;\"> \u2192<\/span><span style=\"font-weight: 400;\">\u00a0 <\/span><b>\u201cAncient fish in honour of Wirngarri<\/b><span style=\"font-weight: 400;\">\u201d<\/span><span style=\"font-weight: 400;\">, a respected<\/span><b> elder of the community.<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Devonian Period<\/b><span style=\"font-weight: 400;\"> \u2192 Best three-dimensionally <\/span><b>preserved coelacanth<\/b><span style=\"font-weight: 400;\"> from the<\/span><b> Devonian Period (359 million to 419 million years ago)<\/b><span style=\"font-weight: 400;\">.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Coelacanths<\/b><span style=\"font-weight: 400;\"> \u2192 Generally <\/span><b>evolved slowly<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Series of environmental factors influencing coelacanth evolutionary rates<\/b><span style=\"font-weight: 400;\"> \u2192 Tectonic plate activity, Ocean temperatures, Water oxygen levels, and Atmospheric carbon dioxide\u00a0<\/span><\/li>\n<\/ul>\n<table style=\"width: 99.9259%;\">\n<tbody>\n<tr>\n<td style=\"width: 137.808%; text-align: center; border-style: solid; border-color: #000000;\" colspan=\"2\"><span style=\"font-size: 18pt;\"><b>Must Read<\/b><\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 50.5357%; text-align: center; border-style: solid; border-color: #000000;\"><a href=\"https:\/\/pwonlyias.com\/stage\/editorial-analysis\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">UPSC Daily Editorials<\/span><\/a><\/td>\n<td style=\"width: 87.2718%; text-align: center; border-style: 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