{"id":432858,"date":"2022-04-16T17:50:02","date_gmt":"2022-04-16T14:50:02","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/cuckoo-finchs-long-con-may-be-up\/"},"modified":"2022-04-16T17:50:02","modified_gmt":"2022-04-16T14:50:02","slug":"cuckoo-finchs-long-con-may-be-up","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/cuckoo-finchs-long-con-may-be-up\/","title":{"rendered":"#Cuckoo finch&#8217;s long con may be up"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a29caff5a20c\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #dd3333;color:#dd3333\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #dd3333;color:#dd3333\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a29caff5a20c\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/buradabiliyorum.com\/en\/cuckoo-finchs-long-con-may-be-up\/#%E2%80%9CCuckoo_finchs_long_con_may_be_up%E2%80%9D\" >&#8220;Cuckoo finch&#8217;s long con may be up&#8221;<\/a><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"%E2%80%9CCuckoo_finchs_long_con_may_be_up%E2%80%9D\"><\/span>&#8220;Cuckoo finch&#8217;s long con may be up&#8221;<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<div>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2022\/spot-the-fake-the-egg.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/2022\/spot-the-fake-the-egg.jpg\" data-sub-html=\"Spot the fake: The egg on the right belongs to the zitting cisticola bird, but the one of the left is a cuckoo finch forgery.\">\n<figure class=\"article-img\">\n            <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2022\/spot-the-fake-the-egg.jpg\" alt=\"Spot the fake: The egg on the right belongs to the zitting cisticola bird, but the one of the left is a cuckoo finch forgery\" title=\"Spot the fake: The egg on the right belongs to the zitting cisticola bird, but the one of the left is a cuckoo finch forgery.\" width=\"800\" height=\"530\"\/><figcaption class=\"text-darken text-low-up text-truncate-js text-truncate mt-3\">\n                Spot the fake: The egg on the right belongs to the zitting cisticola bird, but the one of the left is a cuckoo finch forgery.<br \/>\n            <\/figcaption><\/figure>\n<\/p><\/div>\n<\/div>\n<p>For two million years African cuckoo finches have been tricking other birds into raising their young by mimicking the colour of their eggs, but new research suggests the tables may be turning in this evolutionary scam.<\/p>\n<section class=\"article-banner first-banner ads-336x280\">\n         <!-- \/4988204\/Phys_Story_InText_Box --><\/p>\n<\/section>\n<p>The cute yellow <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/download-scripts-themes-apps\/\" data-internallinksmanager029f6b8e52c=\"9\" title=\"Download Scripts &amp; Themes &amp; Apps\" target=\"_blank\" rel=\"noopener\">app<\/a>earance of the cuckoo finch belies its nefarious nature: it smuggles its forged eggs into foreign nests, where unwitting foster parents treat them like their very own.<\/p>\n<p>The cuckoo finch eggs then hatch a little earlier than the others in the nest, allowing them to grow quicker and beg more loudly for food than the host chicks\u2014which starve to death as their confused parents prioritise the imposter.<\/p>\n<p>Aiming to save their young from this grisly fate, birds like the African tawny-flanked prinia, a common victim of the ruse, have evolved ever more colourful and elaborate patterns for their eggs to avoid falling for counterfeits.<\/p>\n<p>But the wily cuckoo finch has responded in kind, evolving the ability to copy a variety of egg colours and signatures of several different bird species.<\/p>\n<p>Way back in 1933, British geneticist Reginald Punnett hypothesised that cuckoo finches inherited this remarkable talent of mimicry from their mothers.<\/p>\n<p>His theory has been proved for the first time by a study published in the <i>PNAS<\/i> <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/sciencee\/\" data-internallinksmanager029f6b8e52c=\"5\" title=\"Science\" target=\"_blank\" rel=\"noopener\">science<\/a> journal this week, which confirmed that the skill is inherited via the W chromosome which only female birds have\u2014similar to how only human males have the Y chromosome.<\/p>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2022\/the-far-larger-cuckoo.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/2022\/the-far-larger-cuckoo.jpg\" data-sub-html=\"The far larger cuckoo finch hatchling, centre, demands all the food in the nest, leaving the hosts chicks to stave to death.\">\n<figure class=\"article-img text-center\">\n            <img decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2022\/the-far-larger-cuckoo.jpg\" alt=\"The far larger cuckoo finch hatchling, centre, demands all the food in the nest, leaving the hosts chicks to stave to death\" title=\"The far larger cuckoo finch hatchling, centre, demands all the food in the nest, leaving the hosts chicks to stave to death.\"\/><figcaption class=\"text-left text-darken text-truncate text-low-up mt-3\">\n                The far larger cuckoo finch hatchling, centre, demands all the food in the nest, leaving the hosts chicks to stave to death.<br \/>\n            <\/figcaption><\/figure>\n<\/p><\/div>\n<\/div>\n<p>However the study said that &#8220;in this particular arms race, played out in grasslands of central Africa, natural selection has shaped a genetic architecture that appears to be a double-edged sword.&#8221;<\/p>\n<p>Studying the DNA samples of 196 cuckoo finches from 141 nests of four grass-warbler species in Zambia, the researchers found that the long-term dupes have evolved new ways to sniff out the cuckoo finch&#8217;s deceptions.<\/p>\n<p><b>The uncrackable green egg<\/b><\/p>\n<p>Claire Spottiswoode, an evolutionary biologist of the University of Cambridge and University of Cape Town who led the research, gave the example of the olive-green egg, laid by the tawny-flanked prinia.<\/p>\n<p>A single female cuckoo finch cannot produce an infinite variety of differently coloured eggs, she said.<\/p>\n<p>It can only mimic the egg of the bird that raised it\u2014the cuckoo finch is &#8220;imprinted&#8221; with how to target its future victims from the shells of its foster siblings.<\/p>\n<p>This means that different cuckoo finches can lay blue or white eggs, while others can produce them in red and white\u2014but because the skill is inherited via the female chromosome, they can never combine those pigments to make that olive green.<\/p>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2022\/the-tawny-flanked-prin.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/2022\/the-tawny-flanked-prin.jpg\" data-sub-html=\"The tawny-flanked prinia has evolved more elaborate eggs to filter out fakes, including a green colour that cuckoo finches cannot mimic.\">\n<figure class=\"article-img text-center\">\n            <img decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2022\/the-tawny-flanked-prin.jpg\" alt=\"The tawny-flanked prinia has evolved more elaborate eggs to filter out fakes, including a green colour that cuckoo finches canno\" title=\"The tawny-flanked prinia has evolved more elaborate eggs to filter out fakes, including a green colour that cuckoo finches cannot mimic.\"\/><figcaption class=\"text-left text-darken text-truncate text-low-up mt-3\">\n                The tawny-flanked prinia has evolved more elaborate eggs to filter out fakes, including a green colour that cuckoo finches cannot mimic.<br \/>\n            <\/figcaption><\/figure>\n<\/p><\/div>\n<\/div>\n<p>&#8220;Maternal inheritance is the reason why they&#8217;re unable to mimic that particular deep olive green colour,&#8221; Spottiswoode told AFP.<\/p>\n<p>That puts the cuckoo finch at a evolutionary disadvantage\u2014their rivals the prinias can inherit the genetic talents of both parents to make increasingly complicated eggs.<\/p>\n<p>&#8220;We may see the emergence of unforgeable egg signatures which could force cuckoo finches to switch to other naive host species,&#8221; Spottiswoode said.<\/p>\n<p>Even now cuckoo finches &#8220;make a lot of mistakes&#8221; she said, and once prinias spot a forgery they spear the egg and throw it out of the nest.<\/p>\n<p>But if an egg avoids detection long enough to hatch, the parents lose all ability to detect the much larger fraud in their nest.<\/p>\n<p>&#8220;It&#8217;s really remarkable how you have this beautiful adaptation at the egg stage, then at the chick stage the hosts seem to be completely stupid and raise a chick that looks completely unlike their own,&#8221; Spottiswoode said.<\/p>\n<hr\/>\n<div class=\"article-main__explore my-4 d-print-none\">\n<p>                                            Scientists crack egg forging evolutionary puzzle\n                                        <\/p><\/div>\n<hr class=\"mb-4\"\/>\n<div class=\"article-main__more p-4\">\n                                                                                                <strong>More information:<\/strong><br \/>\n                                                Genetic architecture facilitates then constrains adaptation in a host\u2013parasite coevolutionary arms race, <i>Proceedings of the National Academy of Sciences<\/i> (2022).  <a rel=\"nofollow noopener\" target=\"_blank\" data-doi=\"1\" href=\"https:\/\/dx.doi.org\/10.1073\/pnas.2121752119\">DOI: 10.1073\/pnas.2121752119<\/a><\/p><\/div>\n<p class=\"article-main__note mt-4\">\n                                                \u00a9 2022 AFP<\/p>\n<p>                                        <!-- print only --><\/p>\n<div class=\"d-none d-print-block\">\n<p>                                                 <strong>Citation<\/strong>:<br \/>\n                                                 Green eggs and scam: Cuckoo finch&#8217;s long con may be up (2022, April 16)<br \/>\n                                                 retrieved 16 April 2022<br \/>\n                                                 from https:\/\/phys.org\/<a href=\"https:\/\/buradabiliyorum.com\/en\/category\/news\/\" data-internallinksmanager029f6b8e52c=\"2\" title=\"News\" target=\"_blank\" rel=\"noopener\">news<\/a>\/2022-04-green-eggs-scam-cuckoo-finch.html<\/p>\n<p>                                            This document is subject to copyright. 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For two million years African cuckoo finches have been tricking other birds into raising their young by mimicking the colour of their eggs,&#8230;<\/p>\n","protected":false},"author":1,"featured_media":432859,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/scx2.b-cdn.net\/gfx\/news\/2022\/spot-the-fake-the-egg.jpg","fifu_image_alt":"","footnotes":""},"categories":[16],"tags":[],"class_list":["post-432858","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sciencee"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/432858","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=432858"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/432858\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/432859"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=432858"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=432858"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=432858"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}