{"id":27769,"date":"2018-07-20T06:00:34","date_gmt":"2018-07-20T03:00:34","guid":{"rendered":"https:\/\/bilimvegelecek.com.tr\/?p=27769"},"modified":"2018-07-19T23:56:49","modified_gmt":"2018-07-19T20:56:49","slug":"myanmarda-bulunan-kehribar-parcasinda-ilk-bebek-yilan-fosili-kesfedildi","status":"publish","type":"post","link":"https:\/\/bilimvegelecek.com.tr\/index.php\/2018\/07\/20\/myanmarda-bulunan-kehribar-parcasinda-ilk-bebek-yilan-fosili-kesfedildi","title":{"rendered":"Myanmar\u2019da bulunan kehribar par\u00e7as\u0131nda ilk &#8216;bebek y\u0131lan&#8217; fosili ke\u015ffedildi"},"content":{"rendered":"<p>Bir bebek y\u0131lan\u0131n bilinen ilk fosili kal\u0131nt\u0131lar\u0131 Myanmar&#8217;da bulunan bir kehribarda ke\u015ffedildi. Uluslararas\u0131 biliminsanlar\u0131ndan olu\u015fan ekibin 18 Temmuz&#8217;da <em>Science Advances<\/em> dergisinde yay\u0131nlad\u0131klar\u0131 makaleye g\u00f6re, <em>Xiaophis myanmarensis<\/em> ad\u0131 verilen bu yeni t\u00fcr yakla\u015f\u0131k 99 milyon y\u0131l \u00f6nce Kretase D\u00f6nemi&#8217;nde ya\u015fad\u0131 ve daha \u00e7ok gen\u00e7ken, vakitsiz bir \u015fekilde \u00f6ld\u00fc.<\/p>\n<figure id=\"attachment_27771\" aria-describedby=\"caption-attachment-27771\" style=\"width: 838px\" class=\"wp-caption alignleft\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-27771\" src=\"https:\/\/bilimvegelecek.com.tr\/wp-content\/uploads\/2018\/07\/bebek-yilan-1.jpg\" alt=\"\" width=\"838\" height=\"443\" srcset=\"https:\/\/bilimvegelecek.com.tr\/wp-content\/uploads\/2018\/07\/bebek-yilan-1.jpg 838w, https:\/\/bilimvegelecek.com.tr\/wp-content\/uploads\/2018\/07\/bebek-yilan-1-300x160.jpg 300w, https:\/\/bilimvegelecek.com.tr\/wp-content\/uploads\/2018\/07\/bebek-yilan-1-768x406.jpg 768w, https:\/\/bilimvegelecek.com.tr\/wp-content\/uploads\/2018\/07\/bebek-yilan-1-600x317.jpg 600w\" sizes=\"auto, (max-width: 838px) 100vw, 838px\" \/><figcaption id=\"caption-attachment-27771\" class=\"wp-caption-text\">Y\u00fcksek enerjili X-\u0131\u015f\u0131nlar\u0131, bilim adamlar\u0131n\u0131n i\u00e7teki k\u0131r\u0131lgan y\u0131lan iskeletini daha iyi anlayabilmeleri i\u00e7in i\u00e7in koyu renkli kehribar par\u00e7as\u0131n\u0131n i\u00e7ini g\u00f6rmelerini sa\u011fl\u0131yor. \u00a9 L. Xing et. al.\/ Science Advences 2018.<\/figcaption><\/figure>\n<p><strong>&#8216;Bebek&#8217; oldu\u011funu nereden biliyoruz?<\/strong><\/p>\n<p>B\u00fcy\u00fckl\u00fc\u011f\u00fcne bak\u0131ld\u0131\u011f\u0131 zaman, y\u0131lan\u0131n \u00e7ok k\u00fc\u00e7\u00fck bir boyutta oldu\u011fu belirlendi. Kafatas\u0131 kay\u0131p olan iskeletin 5 cm uzunlu\u011funda oldu\u011fu tespit edildi. Tahminler, bu y\u0131lan\u0131n toplamda, kafatas\u0131n\u0131n \u00f6l\u00e7\u00fcleri ile birlikte 8 cm uzunlu\u011funda oldu\u011funu \u00f6ng\u00f6r\u00fcyor. \u00d6te yandan, hen\u00fcz tamamlanmam\u0131\u015f olan kemik geli\u015fimi g\u00f6z \u00f6n\u00fcne al\u0131nd\u0131\u011f\u0131nda, g\u00fcn\u00fcm\u00fcz\u00fcn birka\u00e7 haftal\u0131k y\u0131lanlar\u0131 ile e\u015fle\u015fiyor.<\/p>\n<p>\u00c7al\u0131\u015fmada yer alan Alberta \u00dcniversitesi&#8217;nden paleontolog Michael Cadwell, &#8220;Bu kadar k\u00fc\u00e7\u00fck bir \u015fey fosille\u015fmi\u015f olarak, yani s\u0131radan fosille\u015fme s\u00fcre\u00e7leri ile korunmu\u015f olsayd\u0131, kesinlikle ke\u015ffedemeyecektik. Tortul kayalar muhtemelen k\u0131r\u0131lgan kal\u0131nt\u0131lar\u0131 k\u0131racak ve omurlar\u0131n\u0131 ay\u0131racakt\u0131. Bu y\u00fczden de, y\u0131lan\u0131 tan\u0131mlamam\u0131z imk\u00e2ns\u0131z olacakt\u0131. Neyse ki, bu k\u00fc\u00e7\u00fck y\u0131lan\u0131n talihsiz bir \u015fekilde kehribar i\u00e7ine hapsolu\u015fu bizim onu ve ya\u015fad\u0131\u011f\u0131 \u00e7evreyi incelememiz i\u00e7in bir \u015fans yaratt\u0131&#8221; diyor.<\/p>\n<p>Caldwell, y\u0131lanlar\u0131n fosil kay\u0131tlar\u0131n\u0131n son 20 y\u0131la kadar \u00e7ok az bulundu\u011funu s\u00f6yl\u00fcyor. Y\u0131lanlar genellikle iyi korunmaz. \u00d6zellikle bu bebek, 47 milimetrelik iskeleti i\u00e7erisinde yer alan 97 tane ka\u011f\u0131t inceli\u011finde omuru ile hassast\u0131r.<\/p>\n<p><strong>Kehribar sayesinde\u2026<\/strong><\/p>\n<p>Bu fosil ve daha b\u00fcy\u00fck bir t\u00fcr\u00fcn farkl\u0131 bir y\u0131lan\u0131ndan gelen deri, baz\u0131 Kretase d\u00f6nemi y\u0131lanlar\u0131n\u0131n ormanlarda ya\u015fad\u0131\u011f\u0131na dair ilk kan\u0131tlar\u0131 sunuyor. Caldwell&#8217;e g\u00f6re, bu kesinlikle bir s\u00fcrpriz de\u011fil. O zamana kadar, y\u0131lanlar d\u00fcnya \u00e7ap\u0131nda yay\u0131lm\u0131\u015flard\u0131. Fakat di\u011fer y\u0131lan fosilleri, bu hayvanlar\u0131n ya\u015fam alanlar\u0131n\u0131 tan\u0131mlamak i\u00e7in her zaman yeterli ipucuna sahip olmayabiliyor. Ama, kehribar a\u011fa\u00e7tan s\u0131zmaya ba\u015flad\u0131\u011f\u0131 zaman canl\u0131n\u0131n beraberinde, habitat\u0131na dair olan \u015feyleri de saklay\u0131p g\u00fcn\u00fcm\u00fcze getiriyor.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Bir bebek y\u0131lan\u0131n bilinen ilk fosili kal\u0131nt\u0131lar\u0131 Myanmar&#8217;da bulunan bir kehribarda ke\u015ffedildi. Uluslararas\u0131 biliminsanlar\u0131ndan olu\u015fan ekibin 18 Temmuz&#8217;da Science Advances dergisinde yay\u0131nlad\u0131klar\u0131 makaleye g\u00f6re, Xiaophis myanmarensis ad\u0131 verilen bu yeni t\u00fcr yakla\u015f\u0131k 99 milyon y\u0131l \u00f6nce Kretase D\u00f6nemi&#8217;nde ya\u015fad\u0131 ve daha \u00e7ok gen\u00e7ken, vakitsiz bir \u015fekilde \u00f6ld\u00fc. &#8216;Bebek&#8217; oldu\u011funu nereden biliyoruz? B\u00fcy\u00fckl\u00fc\u011f\u00fcne bak\u0131ld\u0131\u011f\u0131 zaman, y\u0131lan\u0131n [&hellip;]<\/p>\n","protected":false},"author":812,"featured_media":27770,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[211,20,19,21,32],"tags":[3526,3719,450,3718,3720,3715,3717,3716],"class_list":["post-27769","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-antropoloji","category-arkeoloji","category-bilim-gundemi","category-biyoloji","category-evrim","tag-amber","tag-ilk-bebek-yilan","tag-kehribar","tag-kerastese-donemi","tag-mynamar","tag-surungenler","tag-xiaophis-mynamarensis","tag-yilanlar"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts\/27769","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/users\/812"}],"replies":[{"embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/comments?post=27769"}],"version-history":[{"count":0,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts\/27769\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/media\/27770"}],"wp:attachment":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/media?parent=27769"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/categories?post=27769"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/tags?post=27769"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}