Yakla\u015f\u0131k 99 milyon\u00a0y\u0131l \u00f6nce, tropik\u00a0bir\u00a0ormanda\u00a0minik sevimli kurba\u011fac\u0131klar ormandaki\u00a0daha\u00a0nemli\u00a0yerlere do\u011fru z\u0131plarken baz\u0131 talihsiz arkada\u015flar\u0131 a\u011fa\u00e7lar\u0131n re\u00e7inesine hapsoldu. Kehribar i\u00e7erisinde korunmu\u015f \u015fekilde ke\u015ffedilen d\u00f6rt yeni\u00a0kurba\u011fa fosili, eski\u00a0\u00e7a\u011flarda ya\u015fam\u0131\u015f olan kurba\u011falar\u0131n t\u0131pk\u0131 modern amfibik akrabalar\u0131 gibi nemli ve tropik iklimlerde ya\u015famay\u0131 tercih etti\u011fini g\u00f6steriyor.<\/p>\n
Kurba\u011fa fosillerinin\u00a0hi\u00e7 biri\u00a0tam de\u011fil, bu y\u00fczden bu kurba\u011falar\u0131 soy a\u011fac\u0131nda bir\u00a0yere oturtmak ger\u00e7ekten \u00e7ok zor. Birinin kafatas\u0131n\u0131n sadece bir k\u0131sm\u0131n\u0131n olmas\u0131, di\u011ferinin de kurba\u011fams\u0131 bir\u00a0iskelete sahip olmas\u0131 sayesinde farkedilmesi y\u00fcz\u00fcnden bilgisayarl\u0131 tomografi kullan\u0131larak bile t\u00fcre dair\u00a0tam bir\u00a0yarg\u0131ya var\u0131lamad\u0131. Bu denenle, biliminsanlar\u0131 \u00fczerinde \u00e7al\u0131\u015ft\u0131klar\u0131 bu d\u00f6rt fosili\u00a0Electrorana limoae (electrum <\/em>“amber”, rana\u00a0<\/em>ise “kurba\u011fa” anlam\u0131na gelmekte) ad\u0131 ile 14 Haziran’da Scientific Reports<\/em>‘ta yay\u0131nlad\u0131. Anatomik a\u00e7\u0131dan ele al\u0131nd\u0131\u011f\u0131nda, bu tarih \u00f6ncesi kurba\u011falar, g\u00fcn\u00fcm\u00fczde k\u0131rm\u0131z\u0131l\u0131 kurba\u011falar olarak an\u0131lan grup ile benzerlikler g\u00f6stermekte.<\/p>\n Sadece fosil kay\u0131tlar\u0131 ele al\u0131nd\u0131\u011f\u0131nda, daha az say\u0131da kurba\u011fa olmas\u0131na ra\u011fmen amfibiler, neredeyse 200 milyondan daha uzun zamand\u0131r d\u00fcnya \u00fczerinde varl\u0131klar\u0131n\u0131 s\u00fcrd\u00fcrmekte. Ekibin \u00fcyelerinden David Blackburn’e g\u00f6re, ke\u015ffedilen kurba\u011fa fosilleri, milyonlarca y\u0131l \u00f6nce ya\u015fam\u0131\u015f olan kurba\u011falar\u0131n bildi\u011fimiz kurba\u011falardan daha farkl\u0131 g\u00f6r\u00fcnd\u00fc\u011f\u00fcn\u00fc -daha do\u011frusu, kurba\u011fams\u0131 g\u00f6r\u00fcnd\u00fc\u011f\u00fcn\u00fc- i\u015faret etti\u011fini d\u00fc\u015f\u00fcn\u00fcyor ve ekliyor: “Bu kurba\u011falar\u0131 farkl\u0131 k\u0131lan \u015fey iskeletleri de\u011fil; ya\u015fad\u0131klar\u0131 \u00e7evre, do\u011fadaki ge\u00e7mi\u015fleri ve \u00fcreme bi\u00e7imleri farkl\u0131 k\u0131l\u0131yor.”<\/p>\n Kehribar \u00f6rneklerini bu kadar ilgin\u00e7 k\u0131lan \u015fey de bu asl\u0131nda. \u00d6rnekler ayr\u0131ca, korunmu\u015f \u00f6r\u00fcmcekler, kadife solucanlar ve bambu par\u00e7alar\u0131 i\u00e7ermekte. Bu da, tropikal bir iklimin varl\u0131\u011f\u0131na i\u015faret ediyor. Bu t\u00fcr paleoekolojik kan\u0131tlar bilim insanlar\u0131na, eski zamanlarda ya\u015fam\u0131\u015f olan tropikal kurba\u011falar\u0131n g\u00fcnlerini ormanda nas\u0131l ge\u00e7irdiklerine ve o zaman diliminde neler ile etkile\u015fimde olduklar\u0131na dair e\u015fsiz bir bak\u0131\u015f a\u00e7\u0131s\u0131 sunmakta.<\/p>\n","protected":false},"excerpt":{"rendered":" Yakla\u015f\u0131k 99 milyon\u00a0y\u0131l \u00f6nce, tropik\u00a0bir\u00a0ormanda\u00a0minik sevimli kurba\u011fac\u0131klar ormandaki\u00a0daha\u00a0nemli\u00a0yerlere do\u011fru z\u0131plarken baz\u0131 talihsiz arkada\u015flar\u0131 a\u011fa\u00e7lar\u0131n re\u00e7inesine hapsoldu. Kehribar i\u00e7erisinde korunmu\u015f \u015fekilde ke\u015ffedilen d\u00f6rt yeni\u00a0kurba\u011fa fosili, eski\u00a0\u00e7a\u011flarda ya\u015fam\u0131\u015f olan kurba\u011falar\u0131n t\u0131pk\u0131 modern amfibik akrabalar\u0131 gibi nemli ve tropik iklimlerde ya\u015famay\u0131 tercih etti\u011fini g\u00f6steriyor. Kurba\u011fa fosillerinin\u00a0hi\u00e7 biri\u00a0tam de\u011fil, bu y\u00fczden bu kurba\u011falar\u0131 soy a\u011fac\u0131nda bir\u00a0yere oturtmak ger\u00e7ekten \u00e7ok […]<\/p>\n","protected":false},"author":812,"featured_media":27022,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[20,19,21,32],"tags":[3526,3527,816,3205,3525],"class_list":["post-27021","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-arkeoloji","category-bilim-gundemi","category-biyoloji","category-evrim","tag-amber","tag-amber-fosili","tag-fosil","tag-kurbaga","tag-tropik-kurbaga"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t