Paleontoloji y\u0131ll\u0131klar\u0131nda, gezegenimizde ya\u015fam\u0131\u015f en a\u011f\u0131r hayvan unvan\u0131 i\u00e7in yeni bir aday ortaya \u00e7\u0131kt\u0131: Perucetus colossus. Yakla\u015f\u0131k 38 milyon y\u0131l \u00f6nce okyanuslarda dola\u015fan bu devasa soyu t\u00fckenmi\u015f balinan\u0131n, muazzam bir \u015fekilde 180 metrik ton a\u011f\u0131rl\u0131\u011f\u0131nda oldu\u011fu tahmin ediliyor ve bu da g\u00fc\u00e7l\u00fc mavi balinay\u0131 bile g\u00f6lgede b\u0131rak\u0131yor.<\/p>\n\n
Perucetus colossus’un ke\u015ffi, \u0130talya’daki Pisa \u00dcniversitesi’nden Giovanni Bianucci liderli\u011findeki bir paleontolog ekibi taraf\u0131ndan yap\u0131ld\u0131. Ekip, g\u00fcney Peru’daki Pisco Formasyonu’ndan 13 omur, d\u00f6rt kaburga ve bir le\u011fen kemi\u011fi par\u00e7as\u0131 dahil olmak \u00fczere fosille\u015fmi\u015f kemikler ortaya \u00e7\u0131kard\u0131. Bu kemikler o kadar yo\u011fun ve sa\u011flamd\u0131 ki, ara\u015ft\u0131rmac\u0131lar ba\u015flang\u0131\u00e7ta onlar\u0131 kaya sanm\u0131\u015ft\u0131.<\/p>\n\n
Fosille\u015fmi\u015f kal\u0131nt\u0131lara dayanarak, bilim adamlar\u0131 Perucetus colossus’un 55 ila 66 fit uzunlu\u011funda oldu\u011funu tahmin ediyorlar, bu da onu 110 feet’e kadar uzunlu\u011fa ula\u015fabilen modern mavi balinalardan biraz daha k\u0131sa yap\u0131yor. V\u00fccudunun muhtemelen bir sosis \u015feklinde oldu\u011fu ve v\u00fccudunu dalgalar halinde hareket ettirerek yava\u015f\u00e7a y\u00fczd\u00fc\u011f\u00fc d\u00fc\u015f\u00fcn\u00fcl\u00fcyor.<\/p>\n\n
Perucetus colossus’un en dikkat \u00e7ekici \u00f6zelliklerinden biri, son derece yo\u011fun kemikleriydi. Bu yo\u011funluk, beslenirken okyanus taban\u0131na yak\u0131n konumunu korumas\u0131na yard\u0131mc\u0131 olmu\u015f olabilir. Baz\u0131 balinalar\u0131n dal\u0131\u015ftan \u00f6nce akci\u011ferlerini tamamen bo\u015faltmas\u0131n\u0131n aksine, Perucetus colossus’un akci\u011ferlerinde hala bir miktar hava varken dald\u0131\u011f\u0131na inan\u0131l\u0131yor, bu da s\u0131\u011f su sakinleri taraf\u0131ndan yayg\u0131n olarak kullan\u0131lan bir strateji.<\/p>\n\n
Soyu t\u00fckenmi\u015f bir t\u00fcr\u00fcn v\u00fccut a\u011f\u0131rl\u0131\u011f\u0131n\u0131 tahmin etmek zorlu bir i\u015ftir. Perucetus colossus s\u00f6z konusu oldu\u011funda, bilim adamlar\u0131 mevcut fosille\u015fmi\u015f kal\u0131nt\u0131lara dayanarak e\u011fitimli tahminler yapmak zorunda kald\u0131lar. Kafatas\u0131 ve di\u011fer yumu\u015fak dokular korunmad\u0131\u011f\u0131ndan, hayvan\u0131n kafa boyutunu veya ya\u011f i\u00e7eri\u011fini do\u011frudan \u00f6l\u00e7emediler.<\/p>\n\n
Bu zorluklara ra\u011fmen, ara\u015ft\u0131rmac\u0131lar\u0131n 180 metrik tonluk a\u011f\u0131rl\u0131k tahmini, fosille\u015fmi\u015f kemiklerin muazzam boyutu ve yo\u011funlu\u011fu ile destekleniyor. Balinan\u0131n omurlar\u0131n\u0131n her biri 200 kilodan daha a\u011f\u0131rd\u0131, bu da t\u00fcm hayvan\u0131n muazzam b\u00fcy\u00fckl\u00fc\u011f\u00fcne i\u015faret ediyor.<\/p>\n\n
Perucetus colossus’un ke\u015ffi, paleontologlar aras\u0131nda heyecan ve merak uyand\u0131rd\u0131. \u00d6nemli bir \u00e7evresel de\u011fi\u015fim d\u00f6neminde ya\u015fam\u0131\u015f yeni bir balina t\u00fcr\u00fcn\u00fc temsil ediyor. Bu kadar b\u00fcy\u00fck bir boyuta ula\u015fm\u0131\u015f olmas\u0131, okyanuslar\u0131n bu d\u00f6nemde bol miktarda besin kayna\u011f\u0131yla dolu oldu\u011funu g\u00f6steriyor.<\/p>\n\n
Perucetus colossus ayr\u0131ca balinalar\u0131n evrimsel tarihi hakk\u0131nda da fikir veriyor. Yo\u011fun kemikleri ve benzersiz dal\u0131\u015f davran\u0131\u015f\u0131, onun erken, daha karasal balinalar ve modern, tamamen sucul t\u00fcrler aras\u0131nda bir ara form olabilece\u011fini d\u00fc\u015f\u00fcnd\u00fcrmektedir.<\/p>\n\n
Perucetus colossus’un ke\u015ffi, tarih \u00f6ncesi balinalar\u0131n \u00e7e\u015fitlili\u011fi ve b\u00fcy\u00fckl\u00fc\u011f\u00fc hakk\u0131nda \u0131\u015f\u0131k tutarken, bir\u00e7ok soru hala cevaps\u0131z. Bilim adamlar\u0131, hayvan\u0131n diyeti, davran\u0131\u015f\u0131 ve ekolojik ni\u015fi hakk\u0131nda daha fazla bilgi edinmek i\u00e7in fosille\u015fmi\u015f kal\u0131nt\u0131lar\u0131 incelemeye devam ediyor. Gelecekteki ara\u015ft\u0131rmalar ayr\u0131ca Perucetus colossus’un mavi balinay\u0131 D\u00fcnya’da ya\u015fam\u0131\u015f en a\u011f\u0131r hayvan olarak taht\u0131ndan indirip indirmedi\u011fini de ortaya \u00e7\u0131karabilir.<\/p>","protected":false},"excerpt":{"rendered":"
Esrarengiz Perucetus Colossus: Gelmi\u015f Ge\u00e7mi\u015f En A\u011f\u0131r Hayvan Unvan\u0131 \u0130\u00e7in Bir Aday Ke\u015fif ve A\u00e7\u0131klama Paleontoloji y\u0131ll\u0131klar\u0131nda, gezegenimizde ya\u015fam\u0131\u015f en a\u011f\u0131r hayvan unvan\u0131 i\u00e7in yeni bir aday ortaya \u00e7\u0131kt\u0131: Perucetus…<\/p>\n","protected":false},"author":2,"featured_media":25139,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[288],"tags":[361,23532,23531,137,23530,2432,23533],"class_list":["post-17961","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-biology","tag-marine-biology","tag-dense-bones","tag-extinct-whales","tag-paleontology","tag-perucetus-colossus","tag-prehistoric-life","tag-unique-diving-behavior"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/17961","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/comments?post=17961"}],"version-history":[{"count":2,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/17961\/revisions"}],"predecessor-version":[{"id":25140,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/17961\/revisions\/25140"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/media\/25139"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/media?parent=17961"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/categories?post=17961"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/tags?post=17961"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}