{"id":40779,"date":"2025-04-09T20:29:32","date_gmt":"2025-04-09T14:59:32","guid":{"rendered":"https:\/\/www.nextias.com\/ca\/?p=40779"},"modified":"2025-04-09T20:30:00","modified_gmt":"2025-04-09T15:00:00","slug":"de-extinction-dire-wolf","status":"publish","type":"post","link":"https:\/\/www.nextias.com\/ca\/current-affairs\/09-04-2025\/de-extinction-dire-wolf","title":{"rendered":"De-Extinction of Dire Wolf"},"content":{"rendered":"\n<p><strong>Syllabus: GS3\/ Science and Technology<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Context<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A United States-based bioscience company claimed that it had revived an extinct species of animal, the dire wolf.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>The Dire Wolf (Aenocyon dirus)<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The Dire wolf was one of the most formidable predators of the late Pleistocene epoch.<\/li>\n\n\n\n<li><strong>Geographic Range:<\/strong> It lived across <strong>North America <\/strong>\u2014 from southern Canada to the United States, before they went extinct about 13,000 years ago.<\/li>\n\n\n\n<li><strong>Physical Traits: <\/strong>They resembled the grey\/ gray wolves (Canis lupus), but were larger, with white coats.\n<ul class=\"wp-block-list\">\n<li>A dire wolf could be <strong>3.5 feet tall<\/strong>, more than<strong> 6 feet<\/strong> in length, and weigh up to <strong>68 kg.<\/strong><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Diet: <\/strong>Predators of horses, bison, and possibly mammoths.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>What Is De-Extinction?<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>De-extinction, or resurrection biology, refers to the<strong> scientific process of bringing back extinct species <\/strong>or creating organisms closely resembling them through genetic engineering.<\/li>\n\n\n\n<li>De-extinction is possible because of bioengineering techniques that can manipulate DNA and genomes or the genetic material in an organism.\u00a0<\/li>\n\n\n\n<li>The goal is to re-establish dynamic processes that <strong>produce healthy ecosystems <\/strong>and <strong>restore biodiversity.<\/strong><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Methods of De-Extinction<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Back-breeding:<\/strong> It uses the principles of selective breeding. This method works well when the extinct species are closely related to a still-living species.\n<ul class=\"wp-block-list\">\n<li><strong>Limitation: <\/strong>It cannot recreate the exact genome of the extinct species. Risks include inbreeding and genetic mutations.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Cloning: <\/strong>It produces a genetically identical copy of an organism through <strong>Somatic Cell Nuclear Transfer (SCNT).\u00a0<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>Example:<\/strong> Birth of Dolly the sheep in <strong>1996.<\/strong><\/li>\n\n\n\n<li><strong>Limitation: <\/strong>It requires intact living cells, so it&#8217;s not feasible for long-extinct species.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Genome Editing &amp; Synthetic Genomics:<\/strong> Genome editing tools (like CRISPR) allow for precise deletion, addition, or modification of genes.\n<ul class=\"wp-block-list\">\n<li>Synthetic genomics involves inserting large sections of synthesized DNA into a host genome.<\/li>\n\n\n\n<li><strong>Result:<\/strong> Hybrid organisms with traits from both extinct and living species.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img data-dominant-color=\"dae2e6\" data-has-transparency=\"false\" loading=\"lazy\" decoding=\"async\" width=\"634\" height=\"383\" src=\"https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/ca\/uploads\/2025\/04\/creating-hybrid-wooly-mammoth.png\" alt=\"creating hybrid wooly mammoth\" class=\"not-transparent wp-image-40780\" style=\"--dominant-color: #dae2e6; width:470px;height:auto\" srcset=\"https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/ca\/uploads\/2025\/04\/creating-hybrid-wooly-mammoth.png 634w, https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/ca\/uploads\/2025\/04\/creating-hybrid-wooly-mammoth-300x181.png 300w\" sizes=\"auto, (max-width: 634px) 100vw, 634px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\"><strong>Concerns<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ecological Disruption: <\/strong>The reintroduction of hybrid species may disturb present-day ecosystems.<\/li>\n\n\n\n<li><strong>Genetic Health: <\/strong>High chances of mutations, low genetic diversity, and inbreeding.<\/li>\n\n\n\n<li><strong>Habitat Availability:<\/strong> With the changing environment natural habitats may no longer exist.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Concluding remarks<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The revival of the dire wolf signifies a giant leap in genetic science but also opens up a Pandora\u2019s box of ecological, ethical, and legal concerns.\u00a0<\/li>\n\n\n\n<li>While de-extinction holds promise for biodiversity and conservation, its application must be cautious, well-regulated, and grounded in sustainability.<\/li>\n<\/ul>\n\n\n\n<p><strong>Source: <\/strong><a href=\"https:\/\/indianexpress.com\/article\/explained\/explained-sci-tech\/dire-wolves-de-extinction-colossal-9932402\/\" rel=\"nofollow noopener\" target=\"_blank\"><strong>IE<\/strong><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<h3><strong>Context<\/strong><\/h3>\n<li class=\"ms-5\">A United States-based bioscience company claimed that it had revived an extinct species of animal, the dire wolf.<\/li>\n<p><\/p>\n<h3><strong>The Dire Wolf (Aenocyon dirus)<\/strong><\/h3>\n<li class=\"ms-5\">The Dire wolf was one of the most formidable predators of the late Pleistocene epoch.<\/li>\n<li class=\"ms-5\">Geographic Range: It lived across North America \u2014 from southern Canada to the United States, before they went extinct about 13,000 years ago.<\/li>\n<p><a href=\"https:\/\/www.nextias.com\/ca\/current-affairs\/09-04-2025\/de-extinction-dire-wolf\" class=\"btn btn-primary btn-sm float-end\">Read More<\/a><\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[21],"tags":[],"class_list":["post-40779","post","type-post","status-publish","format-standard","hentry","category-current-affairs"],"acf":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts\/40779","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/comments?post=40779"}],"version-history":[{"count":3,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts\/40779\/revisions"}],"predecessor-version":[{"id":40807,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts\/40779\/revisions\/40807"}],"wp:attachment":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/media?parent=40779"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/categories?post=40779"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/tags?post=40779"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}