{"id":11579,"date":"2026-05-08T22:26:54","date_gmt":"2026-05-08T19:26:54","guid":{"rendered":"https:\/\/neoberidhaber.kahveciyazilim.com\/?p=11579"},"modified":"2026-05-08T22:26:56","modified_gmt":"2026-05-08T19:26:56","slug":"437-milyon-yillik-fosil-ezber-bozdu-kirkayak-atalari-bacaklarini-su-altinda-gelistirmis","status":"publish","type":"post","link":"https:\/\/neoberidhaber.kahveciyazilim.com\/index.php\/2026\/05\/08\/437-milyon-yillik-fosil-ezber-bozdu-kirkayak-atalari-bacaklarini-su-altinda-gelistirmis\/","title":{"rendered":"437 Milyon Y\u0131ll\u0131k Fosil Ezber Bozdu: K\u0131rkayak Atalar\u0131 Bacaklar\u0131n\u0131 Su Alt\u0131nda Geli\u015ftirmi\u015f!"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Beklenmedik Anatomi:<\/strong>&nbsp;Sil\u00fcryen d\u00f6nemine ait bu sucul canl\u0131, tamamen deniz taban\u0131nda ya\u015famas\u0131na ra\u011fmen, modern kara canl\u0131lar\u0131na \u00f6zg\u00fc olan &#8220;tek dall\u0131&#8221; (uniramous) bacak yap\u0131s\u0131na sahipti.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ezber Bozan Bulgular:<\/strong>&nbsp;Daha \u00f6nce bu bacak yap\u0131s\u0131n\u0131n karadaki yer\u00e7ekimine ve y\u00fcr\u00fcmeye uyum sa\u011flamak i\u00e7in (adaptasyon) geli\u015fti\u011fi d\u00fc\u015f\u00fcn\u00fcl\u00fcyordu. Ancak&nbsp;<em>Waukartus<\/em>, bu donan\u0131m\u0131n canl\u0131 hen\u00fcz su alt\u0131ndayken \u00e7oktan haz\u0131r oldu\u011funu kan\u0131tlad\u0131.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Eksaptasyon (\u00d6nouyum) Kavram\u0131:<\/strong>&nbsp;Ara\u015ft\u0131rmac\u0131lar, bu durumu evrimsel bir &#8220;\u00f6n haz\u0131rl\u0131k&#8221; olarak tan\u0131ml\u0131yor. Yani, bacaklar su alt\u0131nda ba\u015fka bir i\u015flev i\u00e7in evrilmi\u015f olsa da, milyonlarca y\u0131l sonra karaya \u00e7\u0131k\u0131\u015fta devasa bir avantaj sa\u011flayarak yeni bir g\u00f6reve adapte oldu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Evrim A\u011fac\u0131ndaki Yeri:<\/strong>&nbsp;<em>Waukartus<\/em>, eklem bacakl\u0131lar\u0131n sucul atalar\u0131 ile karasal torunlar\u0131 aras\u0131ndaki o kay\u0131p halkay\u0131 tamamlayarak, &#8220;karaya \u00e7\u0131k\u0131\u015f&#8221; s\u00fcrecinin san\u0131landan \u00e7ok daha donan\u0131ml\u0131 ba\u015flad\u0131\u011f\u0131n\u0131 g\u00f6steriyor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bu ke\u015fif, evrimin her zaman mevcut zorluklara \u00e7\u00f6z\u00fcm \u00fcretmedi\u011fini; bazen ge\u00e7mi\u015ften gelen \u00f6zelliklerin yeni d\u00fcnyalara kap\u0131 a\u00e7t\u0131\u011f\u0131n\u0131 bir kez daha g\u00f6zler \u00f6n\u00fcne seriyor.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/evrimagaci.org\/gonderi\/437-milyon-yillik-fosil-ezber-bozdu-kirkayak-atalari-33203\" target=\"_blank\" rel=\"noreferrer noopener\">haber kayna\u011f\u0131 i\u00e7in t\u0131kla<\/a><\/div>\n<\/div>\n\n\n<div class=\"wp-block-post-author\"><div class=\"wp-block-post-author__avatar\"><img alt='' src='https:\/\/secure.gravatar.com\/avatar\/7aa2fa816019145edcb28b57f49f72b3e1caebcb19884adf0783399888b2d8e6?s=48&#038;d=mm&#038;r=g' srcset='https:\/\/secure.gravatar.com\/avatar\/7aa2fa816019145edcb28b57f49f72b3e1caebcb19884adf0783399888b2d8e6?s=96&#038;d=mm&#038;r=g 2x' class='avatar avatar-48 photo' height='48' width='48' \/><\/div><div class=\"wp-block-post-author__content\"><p class=\"wp-block-post-author__name\">Mahmut Can Yal\u00e7\u0131n<\/p><\/div><\/div>\n\n\n<p class=\"wp-block-paragraph\">08.05.2026 22.26<\/p>\n","protected":false},"excerpt":{"rendered":"Bilim d\u00fcnyas\u0131, eklem bacakl\u0131lar\u0131n karaya \u00e7\u0131k\u0131\u015f hikayesini de\u011fi\u015ftirecek 437 milyon y\u0131ll\u0131k bir fosil ke\u015ffiyle \u00e7alkalan\u0131yor. Wisconsin\u2019de (ABD) bulunan ve Waukartus muscularis ad\u0131 verilen yeni bir t\u00fcr, k\u0131rkayak ve \u00e7\u0131yanlar\u0131n (Myriapoda) bacak evrimine dair yerle\u015fik kan\u0131lar\u0131 temelinden sars\u0131yor.","protected":false},"author":6,"featured_media":11580,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_display_header_overlay":false,"csco_singular_sidebar":"","csco_page_header_type":"","csco_page_load_nextpost":"","csco_post_video_location":[],"csco_post_video_location_hash":"","csco_post_video_url":"","csco_post_video_bg_start_time":0,"csco_post_video_bg_end_time":0,"footnotes":""},"categories":[212,1],"tags":[],"class_list":["post-11579","post","type-post","status-publish","format-standard","has-post-thumbnail","category-bilim","category-genel","cs-entry","cs-video-wrap"],"_links":{"self":[{"href":"https:\/\/neoberidhaber.kahveciyazilim.com\/index.php\/wp-json\/wp\/v2\/posts\/11579","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/neoberidhaber.kahveciyazilim.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/neoberidhaber.kahveciyazilim.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/neoberidhaber.kahveciyazilim.com\/index.php\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/neoberidhaber.kahveciyazilim.com\/index.php\/wp-json\/wp\/v2\/comments?post=11579"}],"version-history":[{"count":1,"href":"https:\/\/neoberidhaber.kahveciyazilim.com\/index.php\/wp-json\/wp\/v2\/posts\/11579\/revisions"}],"predecessor-version":[{"id":11581,"href":"https:\/\/neoberidhaber.kahveciyazilim.com\/index.php\/wp-json\/wp\/v2\/posts\/11579\/revisions\/11581"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/neoberidhaber.kahveciyazilim.com\/index.php\/wp-json\/wp\/v2\/media\/11580"}],"wp:attachment":[{"href":"https:\/\/neoberidhaber.kahveciyazilim.com\/index.php\/wp-json\/wp\/v2\/media?parent=11579"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/neoberidhaber.kahveciyazilim.com\/index.php\/wp-json\/wp\/v2\/categories?post=11579"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/neoberidhaber.kahveciyazilim.com\/index.php\/wp-json\/wp\/v2\/tags?post=11579"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}