{"id":5681,"date":"2026-07-27T15:29:47","date_gmt":"2026-07-27T15:29:47","guid":{"rendered":"https:\/\/koshalsambada.in\/?p=5681"},"modified":"2026-07-27T15:29:47","modified_gmt":"2026-07-27T15:29:47","slug":"the-nonvenomous-king-ratsnake-eats-deadly-cobras-and-vipers-scientists-have-now-mapped-its-genome-to-investigate-how-it-survives-their-venom","status":"publish","type":"post","link":"https:\/\/koshalsambada.in\/?p=5681","title":{"rendered":"The nonvenomous king ratsnake eats deadly cobras and vipers; scientists have now mapped its genome to investigate how it survives their venom"},"content":{"rendered":"<p><br \/>\n<\/p>\n<div>\n<div class=\"e9jwa\">\n<div class=\"vdo_embedd\">\n<div class=\"GfdvZ\">\n<section class=\"_bIDB  clearfix id-r-component leadmedia undefined undefined  E9tg9 \" style=\"top:0px\">\n<div class=\"_bIDB\" data-ua-type=\"1\" onclick=\"stpPgtnAndPrvntDefault(event)\">\n<div class=\"ypVvZ\">\n<div class=\"WGttI\"><img src=\"https:\/\/static.toiimg.com\/thumb\/msid-132663413,imgsize-133652,width-400,height-225,resizemode-4\/king-ratsnake-is-known-for-hunting-and-eating-deadly-venomous-snakes-inaturalist-photos.jpg\" alt=\"The nonvenomous king ratsnake eats deadly cobras and vipers; scientists have now mapped its genome to investigate how it survives their venom\" title=\"King ratsnake is known for hunting and eating deadly venomous snakes (Inaturalist photos)\" decoding=\"async\" fetchpriority=\"high\"\/><\/div>\n<\/div>\n<\/div>\n<div class=\"Ta7d_ img_cptn\"><span title=\"King ratsnake is known for hunting and eating deadly venomous snakes (Inaturalist photos)\">King ratsnake is known for hunting and eating deadly venomous snakes (Inaturalist photos)<\/span><\/div>\n<\/section>\n<\/div><\/div>\n<\/div>\n<p>A nonvenomous snake that regularly hunts and eats some of the world&#8217;s most dangerous venomous snakes has given scientists a new mystery to solve. Researchers have now mapped the genome of the king ratsnake to understand how it survives the venom of cobras, kraits and vipers.<span class=\"id-r-component br\" data-pos=\"2\"\/>The king ratsnake (Elaphe carinata) is found across East Asia. The species is known for attacking and eating venomous snakes, unlike many other nonvenomous snakes that mainly feed on rodents or birds. Although scientists were aware of the king ratsnake&#8217;s unusual ability, but they did not know the biological reasons behind.<span class=\"id-r-component br\" data-pos=\"4\"\/>Now, a team of researchers has produced a chromosome-level reference genome for the species. <!-- -->Their work provides an important genetic resource that could help scientists study venom resistance, snake evolution and even improve future antivenom research. The findings were published in the journal Scientific Data and reported by Nature.<span class=\"id-r-component br\" data-pos=\"9\"\/><\/p>\n<p><h2>The king ratsnake<\/h2>\n<\/p>\n<p><span class=\"id-r-component br\" data-pos=\"11\"\/>When a venomous snake bites another animal, its venom can damage blood, muscles or the nervous system. In many cases, the venom is deadly.<span class=\"id-r-component br\" data-pos=\"13\"\/>The king ratsnake, however, can prey on venomous snakes including cobras, vipers and other dangerous species. According to researchers, this suggests that the snake has evolved natural ways to resist a wide range of snake venoms.<span class=\"id-r-component br\" data-pos=\"17\"\/>Scientists knew about the resistance beforehand, but they still did not understand the biological processes behind it. Mapping the genome gave them a detailed genetic blueprint they could use to answer the questions.<span class=\"id-r-component br\" data-pos=\"19\"\/>DNA carries instructions that tell cells how to grow, function and survive. A genome meanwhile, is the complete set of DNA of an organism.<span class=\"id-r-component br\" data-pos=\"22\"\/>By reading the entire genome, researchers can identify genes that may be linked to traits inclduding disease resistance, body development or protection against venom.<span class=\"id-r-component br\" data-pos=\"24\"\/><\/p>\n<div data-pos=\"0\" class=\"id-r-component iIpbx undefined  &#10;        \">\n<div><img decoding=\"async\" alt=\"The king ratsnake can prey on venomous snakes including cobras, vipers and other dangerous species.\" msid=\"132663504\" width=\"\" title=\"The king ratsnake can prey on venomous snakes including cobras, vipers and other dangerous species.\" placeholdersrc=\"https:\/\/static.toiimg.com\/photo\/83033472.cms\" imgsize=\"\" resizemode=\"4\" offsetvertical=\"0\" placeholdermsid=\"47529300\" type=\"thumb\" class=\"\" src=\"https:\/\/static.toiimg.com\/photo\/msid-132663504\/the-king-ratsnake-can-prey-on-venomous-snakes-including-cobras-vipers-and-other-dangerous-species.jpg\" data-api-prerender=\"true\"\/><\/p>\n<p>The king ratsnake can prey on venomous snakes including cobras, vipers and other dangerous species.<\/p>\n<\/div>\n<\/div>\n<p><span class=\"id-r-component br\" data-pos=\"26\"\/><\/p>\n<p><h2>What genome revealed?<\/h2>\n<\/p>\n<p><span class=\"id-r-component br\" data-pos=\"28\"\/>The research team assembled a chromosome-level genome of the king ratsnake using several advanced DNA sequencing methods. The final genome measured about 1.62 billion DNA building blocks. More than 90% of it was organised into 18 pseudochromosomes, giving researchers one of the most complete genetic references for the species so far.<span class=\"id-r-component br\" data-pos=\"31\"\/>The scientists also identified around 19,750 protein-coding genes, and they were able to assign functions to more than 99% of them using different genetic analysis methods.<span class=\"id-r-component br\" data-pos=\"33\"\/>The study found that repetitive DNA sequences make up over half of the king ratsnake&#8217;s genome. Among these, long interspersed nuclear elements or LINEs were the most common. These repetitive sequences play a role in how genomes evolve over time.<span class=\"id-r-component br\" data-pos=\"36\"\/>Researchers also created a detailed catalogue of the snake&#8217;s genes which will help them compare the king ratsnake with other snakes and hel them identify genetic differences.<span class=\"id-r-component br\" data-pos=\"38\"\/><\/p>\n<p><h2>Treating snakebite<\/h2>\n<\/p>\n<p><span class=\"id-r-component br\" data-pos=\"40\"\/>Snakebite remains a major issue in many parts of the world. The only proven treatment for serious snake envenomation is antivenom. Scientists hope understanding how the king ratsnake naturally resists venom could eventually improve antivenom research or lead to new ways of treating snakebite.<span class=\"id-r-component br\" data-pos=\"44\"\/>However, the researchers stresse that more work is needed before any medical applications become possible. The genome itself is not a treatment, but it gives scientists a valuable starting point for studying how the snake&#8217;s body neutralises or survives venom.<span class=\"id-r-component br\" data-pos=\"46\"\/>This is not the first time scientists have sequenced the king ratsnake&#8217;s DNA. An earlier genome assembly for the species was published in 2023. The study talked about the snake&#8217;s ability to prey on venomous species and suggested that its genome could help investigate venom immunity. But, the exact immune and digestive mechanisms remained unknown.<span class=\"id-r-component br\" data-pos=\"48\"\/>According to scientists, the newly published chromosome-level genome is more complete and provides a much stronger reference for future research.<\/div>\n<p><br \/>\n<br \/><a href=\"https:\/\/timesofindia.indiatimes.com\/science\/the-nonvenomous-king-ratsnake-eats-deadly-cobras-and-vipers-scientists-have-now-mapped-its-genome-to-investigate-how-it-survives-their-venom\/articleshow\/132662487.cms\" target=\"_blank\" rel=\"noopener\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>King ratsnake is known for hunting and eating deadly venomous snakes (Inaturalist photos) A nonvenomous snake that regularly hunts and eats some of the world&#8217;s most dangerous venomous snakes has given scientists a new mystery to solve. Researchers have now mapped the genome of the king ratsnake to understand how it survives the venom of [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5682,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31],"tags":[],"class_list":["post-5681","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-31"],"magazineBlocksPostFeaturedMedia":{"thumbnail":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/07\/king-ratsnake-is-known-for-hunting-and-eating-deadly-venomous-snakes-inaturalist-photos.jpg","medium":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/07\/king-ratsnake-is-known-for-hunting-and-eating-deadly-venomous-snakes-inaturalist-photos.jpg","medium_large":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/07\/king-ratsnake-is-known-for-hunting-and-eating-deadly-venomous-snakes-inaturalist-photos.jpg","large":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/07\/king-ratsnake-is-known-for-hunting-and-eating-deadly-venomous-snakes-inaturalist-photos.jpg","1536x1536":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/07\/king-ratsnake-is-known-for-hunting-and-eating-deadly-venomous-snakes-inaturalist-photos.jpg","2048x2048":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/07\/king-ratsnake-is-known-for-hunting-and-eating-deadly-venomous-snakes-inaturalist-photos.jpg","blogsy-small":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/07\/king-ratsnake-is-known-for-hunting-and-eating-deadly-venomous-snakes-inaturalist-photos.jpg","blogsy-small-tall":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/07\/king-ratsnake-is-known-for-hunting-and-eating-deadly-venomous-snakes-inaturalist-photos.jpg","blogsy-small-square":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/07\/king-ratsnake-is-known-for-hunting-and-eating-deadly-venomous-snakes-inaturalist-photos.jpg","blogsy-small-masonry":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/07\/king-ratsnake-is-known-for-hunting-and-eating-deadly-venomous-snakes-inaturalist-photos.jpg","blogsy-medium":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/07\/king-ratsnake-is-known-for-hunting-and-eating-deadly-venomous-snakes-inaturalist-photos.jpg","blogsy-medium-masonry":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/07\/king-ratsnake-is-known-for-hunting-and-eating-deadly-venomous-snakes-inaturalist-photos.jpg","blogsy-large":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/07\/king-ratsnake-is-known-for-hunting-and-eating-deadly-venomous-snakes-inaturalist-photos.jpg","blogsy-wide":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/07\/king-ratsnake-is-known-for-hunting-and-eating-deadly-venomous-snakes-inaturalist-photos.jpg"},"magazineBlocksPostAuthor":{"name":"admin","avatar":"https:\/\/secure.gravatar.com\/avatar\/8709732a479614e7a8aa24d3eb1b239f30dc6d90c61464ed495001e7a469d856?s=96&d=mm&r=g"},"magazineBlocksPostCommentsNumber":"0","magazineBlocksPostExcerpt":"King ratsnake is known for hunting and eating deadly venomous snakes (Inaturalist photos) A nonvenomous snake that regularly hunts and eats some of the world&#8217;s most dangerous venomous snakes has given scientists a new mystery to solve. Researchers have now mapped the genome of the king ratsnake to understand how it survives the venom of [&hellip;]","magazineBlocksPostCategories":["\u0b26\u0b47\u0b36 \u0b2c\u0b3f\u0b26\u0b47\u0b36"],"magazineBlocksPostViewCount":2,"magazineBlocksPostReadTime":4,"magazine_blocks_featured_image_url":{"full":["https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/07\/king-ratsnake-is-known-for-hunting-and-eating-deadly-venomous-snakes-inaturalist-photos.jpg",400,225,false],"medium":["https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/07\/king-ratsnake-is-known-for-hunting-and-eating-deadly-venomous-snakes-inaturalist-photos.jpg",300,169,false],"thumbnail":["https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/07\/king-ratsnake-is-known-for-hunting-and-eating-deadly-venomous-snakes-inaturalist-photos.jpg",150,84,false]},"magazine_blocks_author":{"display_name":"admin","author_link":"https:\/\/koshalsambada.in\/author\/admin"},"magazine_blocks_comment":0,"magazine_blocks_author_image":"https:\/\/secure.gravatar.com\/avatar\/8709732a479614e7a8aa24d3eb1b239f30dc6d90c61464ed495001e7a469d856?s=96&d=mm&r=g","magazine_blocks_category":"<a href=\"#\" class=\"category-link category-link-31\">\u0b26\u0b47\u0b36 \u0b2c\u0b3f\u0b26\u0b47\u0b36<\/a>","_links":{"self":[{"href":"https:\/\/koshalsambada.in\/index.php?rest_route=\/wp\/v2\/posts\/5681","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/koshalsambada.in\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/koshalsambada.in\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/koshalsambada.in\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/koshalsambada.in\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5681"}],"version-history":[{"count":0,"href":"https:\/\/koshalsambada.in\/index.php?rest_route=\/wp\/v2\/posts\/5681\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/koshalsambada.in\/index.php?rest_route=\/wp\/v2\/media\/5682"}],"wp:attachment":[{"href":"https:\/\/koshalsambada.in\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5681"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/koshalsambada.in\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5681"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/koshalsambada.in\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5681"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}