Kafataslar\u0131n\u0131n boyutu ve \u015fekli gibi pek \u00e7ok \u00f6zellik a\u00e7\u0131s\u0131ndan sahip olduklar\u0131 geni\u015f \u00e7e\u015fitlilik nedeniyle deveku\u015flar\u0131, pelikanlar, sinek ku\u015flar\u0131, \u015fahinler ve a\u011fa\u00e7kakanlar\u0131n gibi ku\u015flar\u0131n ayn\u0131 s\u0131n\u0131fta bulunan hayvanlar olmalar\u0131 dikkat \u00e7ekicidir.<\/p>\n
\u0130ngiltere ve ABD\u2019den bilminsanlar\u0131n\u0131n kat\u0131l\u0131m\u0131yla yap\u0131lan \u00e7al\u0131\u015fmada ku\u015flar\u0131n kafatas\u0131 yap\u0131lar\u0131n\u0131n \u00e7e\u015fitlili\u011fine odaklan\u0131ld\u0131. \u00c7al\u0131\u015fman\u0131n y\u00fcr\u00fct\u00fcc\u00fclerinden Ryan Felice, \u201c\u015ea\u015f\u0131rt\u0131c\u0131 bir \u015fekilde, ku\u015flarda kafatas\u0131, dinozorlara k\u0131yasla \u00e7ok daha yava\u015f bir evrim s\u00fcreci ge\u00e7iriyor. Bu durum, ku\u015flar\u0131n kafatas\u0131 yap\u0131lar\u0131ndaki \u015fekil \u00e7e\u015fitlili\u011fine dinozorlar\u0131n kitlesel yokolu\u015funun ard\u0131ndan h\u0131zl\u0131 bir de\u011fi\u015fimle de\u011fil, yava\u015f ve istikrarl\u0131 de\u011fi\u015fimlerle ula\u015ft\u0131klar\u0131 anlam\u0131na geliyor\u201d a\u00e7\u0131klamalar\u0131nda bulundu.<\/p>\n
Ekip, ku\u015flar\u0131n kafataslar\u0131n\u0131n y\u00fcksek \u00e7\u00f6z\u00fcn\u00fcrl\u00fckl\u00fc \u00fc\u00e7 boyutlu g\u00f6r\u00fcnt\u00fclerini ald\u0131 ve g\u00fcn\u00fcm\u00fczde de var olan 354 ku\u015f t\u00fcr\u00fc ile soyu t\u00fckenmi\u015f 37 dinozor t\u00fcr\u00fcn\u00fcn kafatas\u0131 yap\u0131s\u0131n\u0131n haritas\u0131n\u0131 elde etti. Ara\u015ft\u0131rmac\u0131lar, dinozorlar\u0131n kafatas\u0131n\u0131n daha h\u0131zl\u0131 bir evrim s\u00fcrecinden ge\u00e7ti\u011fini raporlad\u0131. Dinozorlar\u0131n evrimsel de\u011fi\u015fiklikleri aras\u0131nda Ceratopsia i\u00e7erisindeki canl\u0131larda g\u00f6r\u00fclen boynuzlar, Tyrannosaurus rex<\/em> gibi g\u00fc\u00e7l\u00fc \u00e7ene yap\u0131lar\u0131na sahip canl\u0131larda g\u00f6r\u00fclen b\u00fcy\u00fck \u00e7ene kaslar\u0131 gibi \u00f6zellikler vard\u0131.<\/p>\n Ku\u015flarda ise kafa b\u00f6lgesinde belirgin iri g\u00f6zler ve beyin bulunur, dinozorlardaki gibi boynuzlara genellikle rastlanmaz. Ku\u015flardaki gaga yap\u0131s\u0131n\u0131n besin kaynaklar\u0131 ve beslenme bi\u00e7imlerine g\u00f6re de\u011fi\u015fkenlik g\u00f6sterdi\u011fi ve en h\u0131zl\u0131 evrimle\u015fme s\u00fcrecine sahip \u00f6zelliklerden biri oldu\u011fu d\u00fc\u015f\u00fcn\u00fclmektedir.<\/p>\n Ara\u015ft\u0131rmac\u0131lar, sadece kafatas\u0131 de\u011fil kanat ve bacak yap\u0131lar\u0131 gibi pek \u00e7ok \u00f6zellikle birbirinden h\u0131zla ayr\u0131lan ku\u015f t\u00fcrlerinin \u201cmozaik evrimine\u201d vurgu yapt\u0131klar\u0131 \u00e7al\u0131\u015fmalar\u0131n\u0131n, bug\u00fcne kadarki en b\u00fcy\u00fck ve en ayr\u0131nt\u0131l\u0131 dinozor ve ku\u015f kafatas\u0131 evrim haritalamas\u0131 oldu\u011funu s\u00f6yl\u00fcyorlar. Ayr\u0131ca ara\u015ft\u0131rma, t\u00fcm omurgal\u0131larda haritalama \u00e7al\u0131\u015fmas\u0131 yap\u0131lmas\u0131 ve t\u00fcr \u00e7e\u015fitlili\u011fini neyin \u015fekillendirdi\u011finin anla\u015f\u0131lmas\u0131 i\u00e7in Londra Do\u011fa Tarihi M\u00fczesi’nden Anjali Goswami taraf\u0131ndan y\u00fcr\u00fct\u00fclen iddial\u0131 bir projenin de par\u00e7as\u0131 konumunda.<\/p>\n \u015eimdiye kadar ekip, ku\u015flar, y\u0131lanlar, kertenkeleler, kurba\u011falar, semenderler ve amfibilerde bu yakla\u015f\u0131m\u0131n kullan\u0131lmas\u0131n\u0131n ard\u0131ndan elde edilen sonu\u00e7lar\u0131 yay\u0131nlad\u0131. Ara\u015ft\u0131rmalar\u0131n\u0131 s\u00fcrd\u00fcren biliminsanlar\u0131n\u0131n ku\u015f ve dinozor kafatas\u0131 \u00fc\u00e7 boyutlu tarama verilerine m\u00fczenin veri taban\u0131<\/a>ndan ula\u015f\u0131labilmektedir.<\/p>\n Kaynak:<\/strong> https:\/\/cosmosmagazine.com\/nature\/evolution\/bird-skulls-evolved-surprisingly-slowly\/<\/p>\n","protected":false},"excerpt":{"rendered":" Kafataslar\u0131n\u0131n boyutu ve \u015fekli gibi pek \u00e7ok \u00f6zellik a\u00e7\u0131s\u0131ndan sahip olduklar\u0131 geni\u015f \u00e7e\u015fitlilik nedeniyle deveku\u015flar\u0131, pelikanlar, sinek ku\u015flar\u0131, \u015fahinler ve a\u011fa\u00e7kakanlar\u0131n gibi ku\u015flar\u0131n ayn\u0131 s\u0131n\u0131fta bulunan hayvanlar olmalar\u0131 dikkat \u00e7ekicidir. \u0130ngiltere ve ABD\u2019den bilminsanlar\u0131n\u0131n kat\u0131l\u0131m\u0131yla yap\u0131lan \u00e7al\u0131\u015fmada ku\u015flar\u0131n kafatas\u0131 yap\u0131lar\u0131n\u0131n \u00e7e\u015fitlili\u011fine odaklan\u0131ld\u0131. \u00c7al\u0131\u015fman\u0131n y\u00fcr\u00fct\u00fcc\u00fclerinden Ryan Felice, \u201c\u015ea\u015f\u0131rt\u0131c\u0131 bir \u015fekilde, ku\u015flarda kafatas\u0131, dinozorlara k\u0131yasla \u00e7ok daha […]<\/p>\n","protected":false},"author":1390,"featured_media":46049,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19],"tags":[3043,200,1137,3306],"class_list":["post-46048","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bilim-gundemi","tag-dinozor","tag-evrim","tag-kafatasi","tag-kus"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts\/46048","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\/1390"}],"replies":[{"embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/comments?post=46048"}],"version-history":[{"count":0,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts\/46048\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/media\/46049"}],"wp:attachment":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/media?parent=46048"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/categories?post=46048"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/tags?post=46048"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}