{"id":117,"date":"2026-08-21T12:01:48","date_gmt":"2026-08-21T12:01:48","guid":{"rendered":"https:\/\/baharkilic.org\/?p=117"},"modified":"2026-08-21T13:33:41","modified_gmt":"2026-08-21T13:33:41","slug":"akcigerli-balik-yururken-goruntulendi","status":"publish","type":"post","link":"https:\/\/baharkilic.org\/?p=117","title":{"rendered":"Akci\u011ferli bal\u0131k y\u00fcr\u00fcrken g\u00f6r\u00fcnt\u00fclendi"},"content":{"rendered":"<p><iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/xE5M2K_gmuQ\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p><span style=\"font-family: verdana, geneva; font-size: small;\">&nbsp; &nbsp;&Ccedil;ekilen videoda bir&nbsp;<span style=\"color: #0000ff;\"><a href=\"http:\/\/tr.wikipedia.org\/wiki\/Akci%C4%9Ferli_bal%C4%B1klar\" target=\"_blank\">akci\u011ferli bal\u0131k<\/a><\/span> t&uuml;r&uuml; olan&nbsp;<em><span style=\"color: #0000ff;\"><a href=\"http:\/\/en.wikipedia.org\/wiki\/Protopterus_annectens\" target=\"_blank\">Protopterus annectens<\/a><\/span> <\/em>(Afrika akci\u011ferli bal\u0131\u011f\u0131), iki uzun arka y&uuml;zgecini akvaryumun taban\u0131nda arka ayak gibi kullan\u0131rken g&ouml;r&uuml;l&uuml;yor.&nbsp;<\/span><span style=\"font-family: verdana, geneva; font-size: small;\">&Ouml;n y&uuml;zge&ccedil;ler ise hareketsiz kal\u0131yor ve hayvan\u0131n g&ouml;vdesi, sadece arka y&uuml;zge&ccedil;lerin yard\u0131m\u0131yla ileriye ittiriliyor. Bilim adamlar\u0131na g&ouml;re bu g&ouml;r&uuml;nt&uuml;ler, y&uuml;r&uuml;me konusunda evrim s&uuml;recinde ilk ad\u0131mlar\u0131n&nbsp;karada de\u011fil, bu bal\u0131\u011fa benzer t&uuml;rler taraf\u0131ndan suda at\u0131ld\u0131\u011f\u0131na i\u015faret ediyor.<\/span><\/p>\n<p><span style=\"font-family: verdana, geneva; font-size: small; color: #000000;\">&nbsp; &nbsp;Bir di\u011fer deyi\u015fle akci\u011ferli bal\u0131k, evrim s&uuml;recinde su canl\u0131lar\u0131 ile kara canl\u0131lar\u0131 aras\u0131ndaki ge&ccedil;i\u015fin nas\u0131l evrimle\u015fmi\u015f olabilece\u011finin canl\u0131 g&ouml;stergesi, bir ge&ccedil;i\u015f t&uuml;r&uuml;.<\/span><span style=\"font-family: verdana, geneva; font-size: small;\">&nbsp;Bulgular\u0131 <em>PNAS<\/em> dergisinde <a href=\"https:\/\/www.pnas.org\/doi\/10.1073\/pnas.1118669109\" target=\"_blank\">yay\u0131mlanan<\/a> &ccedil;al\u0131\u015fmada, akci\u011ferli bal\u0131k<em>&nbsp;<\/em>t&uuml;r&uuml;&nbsp;<em><span style=\"color: #333333;\">Protopterus annectens<\/span><\/em>&nbsp;incelenmi\u015f.<\/span><span style=\"font-family: verdana, geneva; font-size: small;\">&nbsp;B<\/span><span style=\"font-family: verdana, geneva; font-size: small;\">u bal\u0131klar, <strong>tetrapodlar<\/strong> olarak bilinen ve insanlar, ku\u015flar, memeliler ve s&uuml;r&uuml;ngenlerin de dahil oldu\u011fu d&ouml;rt kol ve bacakl\u0131, omurgal\u0131 kara canl\u0131lar\u0131yla b&uuml;y&uuml;k benzerlikler g&ouml;steriyor.<\/span><\/p>\n<p><span style=\"font-family: verdana, geneva; font-size: small;\">&nbsp; &nbsp;Ara\u015ft\u0131rmac\u0131lar\u0131n amac\u0131 evrim halkas\u0131ndaki en b&uuml;y&uuml;k de\u011fi\u015fimlerden birinin nas\u0131l ya\u015fand\u0131\u011f\u0131n\u0131 anlamakt\u0131.<\/span><span style=\"font-family: verdana, geneva; font-size: small;\">&nbsp;<\/span><span style=\"font-family: verdana, geneva; font-size: small;\">Chicago &Uuml;niversitesi&#8217;nden Heather King; <em>&#8220;Evrimdeki &ccedil;ok &ouml;nemli olaylardan biri, bun<\/em><\/span><em><span style=\"font-family: verdana, geneva; font-size: small;\">dan 360 milyon y\u0131l &ouml;nce bal\u0131k t&uuml;r&uuml; canl\u0131lar\u0131n tetrapodlara d&ouml;n&uuml;\u015fmesi, sudan karaya &ccedil;\u0131kmas\u0131yd\u0131.&nbsp;<\/span><span style=\"font-family: verdana, geneva; font-size: small;\">Akci\u011ferli bal\u0131klar tetrapodlara benzedi\u011fi ve t&uuml;rlerinin di\u011fer &ouml;rnekleri tamamen yok oldu\u011fu i&ccedil;in, onlar\u0131 izlemeyi tercih ettik.&#8221;<\/span><\/em><span style=\"font-family: verdana, geneva; font-size: small;\">&nbsp;diyor.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/image.axd?picture=2011%2f12%2fy%c3%bcr%c3%bcyen+bal%c4%b1k.jpg\" alt=\"\" width=\"525\" height=\"198\" \/>&nbsp;<\/p>\n<p><span style=\"font-family: verdana, geneva; font-size: small;\"><span style=\"font-size: xx-small;\">&nbsp; &nbsp;<\/span><\/span><span style=\"font-family: verdana, geneva; font-size: small;\">Bu bal\u0131k, hem solunga&ccedil;lara hem de akci\u011fer benzeri organlara sahip.&nbsp;<\/span><span style=\"font-family: verdana, geneva; font-size: small;\">Ama karada y&uuml;r&uuml;yen di\u011fer canl\u0131larda bulunan kuyruksokumu kemi\u011fi, el ve ayak parmaklar\u0131 gibi &ouml;nemli organlar\u0131 yok.<\/span><span style=\"font-family: verdana, geneva; font-size: small;\">&nbsp;&Ccedil;ekilen g&ouml;r&uuml;nt&uuml;lerde bu eksikleri &ouml;rtmek i&ccedil;in y&uuml;zge&ccedil;lerini k\u0131v\u0131rarak, aya\u011fa benzer, yere basabilecekleri y&uuml;zeyler olu\u015fturduklar\u0131 g&ouml;r&uuml;l&uuml;yor.<\/span><span style=\"font-family: verdana, geneva; font-size: small;\">&nbsp;<\/span><span style=\"font-family: verdana, geneva; font-size: small;\">Bu da y&uuml;r&uuml;me yetisinin, el ve ayak parmaklar\u0131 olu\u015fmadan ve canl\u0131lar karaya &ccedil;\u0131kmadan &ouml;nce geli\u015fmi\u015f olabilece\u011fini g&ouml;steriyor.&nbsp;<\/span><span style=\"font-family: verdana, geneva; font-size: small;\">Ekip \u015fimdi de bu bal\u0131\u011f\u0131n Afrika d\u0131\u015f\u0131ndaki t&uuml;rlerini incelemeyi planl\u0131yor.<\/span><span style=\"font-family: verdana, geneva; font-size: small;\">&nbsp;<\/span><\/p>\n<p><span style=\"font-family: verdana, geneva; font-size: small;\"><strong>*<\/strong> Yaz\u0131n\u0131n orijinali,&nbsp;BBC bilim muhabirleri&nbsp;<em>Victoria Gill<\/em> ve <em>Jason Palmer<\/em><\/span><span style=\"font-family: verdana, geneva; font-size: small;\">&nbsp;<\/span><span style=\"font-family: verdana, geneva; font-size: small;\">taraf\u0131ndan yaz\u0131lm\u0131\u015ft\u0131r (T&uuml;rk&ccedil;e kaynak:<\/span><span style=\"font-family: verdana, geneva; font-size: small;\">&nbsp;<em>BBC Bilim-Teknoloji Haberleri;<\/em>&nbsp;14.12.2011)&nbsp;<\/span><\/p>\n<p><strong>\u015eunlar da ilginizi &ccedil;ekebilir:<\/strong><\/p>\n<ul>\n<li><span style=\"font-family: verdana, geneva; font-size: small;\"><a href=\"\/post\/2014\/09\/27\/Gezegenimizdeki_Yasamin_Kisa_Bir_Tarihcesi_3_bolum\">Gezegenimizdeki Ya\u015fam\u0131n K\u0131sa Bir Tarih&ccedil;esi<\/a>&nbsp;<\/span><\/li>\n<li><span style=\"font-family: verdana, geneva; font-size: small;\"><a href=\"\/page\/Fosil\">&#8220;Ara form yoktur&#8221;<\/a>&nbsp;diyenlere<\/span><\/li>\n<li><span style=\"font-family: verdana, geneva; font-size: small;\"><a href=\"\/post\/2011\/09\/01\/Dini_Kesfetmek_7_Bolum_Gecis_Turleri\">Ge&ccedil;i\u015f t&uuml;rleri<\/a>&nbsp;(video)<\/span><\/li>\n<li><span style=\"font-family: verdana, geneva; font-size: small;\"><a href=\"http:\/\/arsiv.ozgurdusuncehareketi.org\/link.aspx?ID=215&amp;kategori_id=8\">Ge&ccedil;i\u015f t&uuml;rleri<\/a> (Arg&uuml;man Ar\u015fivi)<\/span><\/li>\n<li><span style=\"font-family: verdana, geneva; font-size: small;\"><a href=\"\/post\/2011\/05\/08\/Evrimgercekleri_Hayat_Otobani\">Hayat Otoban\u0131 <\/a>(video)<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; &nbsp;&Ccedil;ekilen videoda bir&nbsp;akci\u011ferli bal\u0131k t&uuml;r&uuml; olan&nbsp;Protopterus annectens (Afrika akci\u011ferli bal\u0131\u011f\u0131), iki uzun arka y&uuml;zgecini akvaryumun taban\u0131nda arka ayak gibi kullan\u0131rken g&ouml;r&uuml;l&uuml;yor.&nbsp;&Ouml;n y&uuml;zge&ccedil;ler ise hareketsiz kal\u0131yor ve hayvan\u0131n g&ouml;vdesi, sadece arka y&uuml;zge&ccedil;lerin yard\u0131m\u0131yla ileriye ittiriliyor. Bilim adamlar\u0131na g&ouml;re bu g&ouml;r&uuml;nt&uuml;ler, y&uuml;r&uuml;me konusunda evrim s&uuml;recinde ilk ad\u0131mlar\u0131n&nbsp;karada de\u011fil, bu bal\u0131\u011fa benzer t&uuml;rler taraf\u0131ndan suda at\u0131ld\u0131\u011f\u0131na i\u015faret [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-117","post","type-post","status-publish","format-standard","hentry","category-bilim"],"_links":{"self":[{"href":"https:\/\/baharkilic.org\/index.php?rest_route=\/wp\/v2\/posts\/117","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/baharkilic.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/baharkilic.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/baharkilic.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/baharkilic.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=117"}],"version-history":[{"count":1,"href":"https:\/\/baharkilic.org\/index.php?rest_route=\/wp\/v2\/posts\/117\/revisions"}],"predecessor-version":[{"id":358,"href":"https:\/\/baharkilic.org\/index.php?rest_route=\/wp\/v2\/posts\/117\/revisions\/358"}],"wp:attachment":[{"href":"https:\/\/baharkilic.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=117"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/baharkilic.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=117"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/baharkilic.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=117"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}