{"id":53100,"date":"2021-04-18T19:22:00","date_gmt":"2021-04-18T16:22:00","guid":{"rendered":"http:\/\/life.karpat.in.ua\/?p=53100"},"modified":"2021-04-18T00:10:25","modified_gmt":"2021-04-17T21:10:25","slug":"erdekes-kutatas-hany-t-rex-elhetett-a-foldon","status":"publish","type":"post","link":"https:\/\/life.karpat.in.ua\/?p=53100&lang=hu","title":{"rendered":"\u00c9rdekes kutat\u00e1s: h\u00e1ny T. rex \u00e9lhetett a F\u00f6ld\u00f6n?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u00d6sszesen 2,5 milli\u00e1rd p\u00e9ld\u00e1ny \u00e9lhetett a F\u00f6ld\u00f6n a Tyrannosaurus rexb\u0151l, az egyik legismertebb dinoszauruszfajb\u00f3l \u2013 sz\u00e1molt\u00e1k ki a Kaliforniai Egyetem berkeley-i int\u00e9zm\u00e9ny\u00e9nek kutat\u00f3i, akik a Science c\u00edm\u0171 foly\u00f3iratban publik\u00e1lt\u00e1k cs\u00fct\u00f6rt\u00f6k\u00f6n az els\u0151 \u201edin\u00f3sz\u00e1ml\u00e1l\u00e1s\u201d eredm\u00e9ny\u00e9t.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"640\" src=\"http:\/\/life.karpat.in.ua\/wp-content\/uploads\/2021\/04\/tyrannosaurus-rex-trex-1024x640.jpg\" alt=\"\" class=\"wp-image-53103\" srcset=\"https:\/\/life.karpat.in.ua\/wp-content\/uploads\/2021\/04\/tyrannosaurus-rex-trex-1024x640.jpg 1024w, https:\/\/life.karpat.in.ua\/wp-content\/uploads\/2021\/04\/tyrannosaurus-rex-trex-300x187.jpg 300w, https:\/\/life.karpat.in.ua\/wp-content\/uploads\/2021\/04\/tyrannosaurus-rex-trex-768x480.jpg 768w, https:\/\/life.karpat.in.ua\/wp-content\/uploads\/2021\/04\/tyrannosaurus-rex-trex-1536x960.jpg 1536w, https:\/\/life.karpat.in.ua\/wp-content\/uploads\/2021\/04\/tyrannosaurus-rex-trex-2048x1280.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A rendelkez\u00e9sre \u00e1ll\u00f3 tudom\u00e1nyos adatok alapj\u00e1n a Berkeley kutat\u00f3i kisz\u00e1m\u00edtott\u00e1k, hogy ezek az \u0151sh\u00fcll\u0151k 15 \u00e9ves korukra \u00e9rhett\u00e9k el az ivar\u00e9retts\u00e9get, minden gener\u00e1ci\u00f3 mintegy 19 \u00e9vig \u00e9lhetett, a feln\u0151tt \u00e1llatok s\u00falya 5,2 tonna k\u00f6r\u00fcl lehetett, \u00e9s \u00e1tlagosan minden 100 n\u00e9gyzetkilom\u00e9terre jutott egy p\u00e9ld\u00e1ny 2,3 milli\u00f3 n\u00e9gyzetkilom\u00e9ter \u00f6sszter\u00fcleten.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ezekb\u0151l az adatokb\u00f3l kiindulva a kutat\u00f3k arra a k\u00f6vetkezt\u00e9sre jutottak, hogy a bolyg\u00f3n egy adott pillanatban mintegy 20 ezer T. rex \u00e9lhetett, \u00e9s a faj 127 ezer gener\u00e1ci\u00f3n kereszt\u00fcl maradhatott fenn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ez azt jelenti, hogy k\u00e9t \u00e9s f\u00e9l milli\u00f3 \u00e9v alatt \u00f6sszesen k\u00e9t \u00e9s f\u00e9l milli\u00e1rd T. rex \u00e9lt a f\u00f6ld\u00f6n.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"678\" src=\"http:\/\/life.karpat.in.ua\/wp-content\/uploads\/2021\/04\/tyrannosaurus-rex-t-rex-1024x678.jpg\" alt=\"\" class=\"wp-image-53104\" srcset=\"https:\/\/life.karpat.in.ua\/wp-content\/uploads\/2021\/04\/tyrannosaurus-rex-t-rex-1024x678.jpg 1024w, https:\/\/life.karpat.in.ua\/wp-content\/uploads\/2021\/04\/tyrannosaurus-rex-t-rex-300x199.jpg 300w, https:\/\/life.karpat.in.ua\/wp-content\/uploads\/2021\/04\/tyrannosaurus-rex-t-rex-768x509.jpg 768w, https:\/\/life.karpat.in.ua\/wp-content\/uploads\/2021\/04\/tyrannosaurus-rex-t-rex.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A berkeley-i kutat\u00f3k is elismert\u00e9k, hogy becsl\u00e9s\u00fck meglehet\u0151sen nagy hibasz\u00e1zal\u00e9kot tartalmaz: az \u00f6sszes valaha \u00e9lt Tyrannosaurus rex sz\u00e1ma minim\u00e1lisan 140 milli\u00f3, maxim\u00e1lisan 42 milli\u00e1rd, ennek \u00e1tlag\u00e1t hat\u00e1rozt\u00e1k meg mintegy k\u00e9t \u00e9s f\u00e9l milli\u00e1rdban, az id\u0151szak pedig, amelyben a gigantikus \u00e1llatok \u00c9szak-Amerik\u00e1t r\u00f3tt\u00e1k, 1,2 milli\u00f3t\u00f3l 3,6 milli\u00f3 \u00e9vig terjed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Szak\u00e9rt\u0151k szerint ha a T. rexb\u0151l csak 2,5 milli\u00f3 \u00e9lt volna \u2013 \u00e9s nem 2,5 milli\u00e1rd \u2013, val\u00f3sz\u00edn\u0171leg soha nem tudtuk volna meg, hogy valaha is<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A T. rex volt minden id\u0151k legnagyobb h\u00fasev\u0151 sz\u00e1razf\u00f6ldi \u00e1llata. A faj val\u00f3sz\u00edn\u0171leg akkor halt ki, amikor egy aszteroida csap\u00f3dott be Mexik\u00f3 ter\u00fclet\u00e9n, kipuszt\u00edtva a F\u00f6ld\u00f6n hajdan l\u00e9tez\u0151 fajok h\u00e1romnegyed\u00e9t.<\/p>\n\n\n\n<p class=\"has-text-align-right wp-block-paragraph\">(MTI\/ANSA\/AP\/<a href=\"https:\/\/www.origo.hu\/tudomany\/20210416-kiszamoltak-mennyi-tyrannosaurus-rex-elhetett-a-foldon.html\" target=\"_blank\" rel=\"noreferrer noopener\">Origo<\/a>)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A rendelkez\u00e9sre \u00e1ll\u00f3 tudom\u00e1nyos adatok alapj\u00e1n a Berkeley kutat\u00f3i kisz\u00e1m\u00edtott\u00e1k, hogy ezek az \u0151sh\u00fcll\u0151k 15 \u00e9ves korukra \u00e9rhett\u00e9k el az ivar\u00e9retts\u00e9get, minden gener\u00e1ci\u00f3 mintegy 19 \u00e9vig \u00e9lhetett, a feln\u0151tt \u00e1llatok s\u00falya 5,2 tonna k\u00f6r\u00fcl lehetett, \u00e9s \u00e1tlagosan minden 100 n\u00e9gyzetkilom\u00e9terre jutott egy p\u00e9ld\u00e1ny 2,3 milli\u00f3 n\u00e9gyzetkilom\u00e9ter \u00f6sszter\u00fcleten.<\/p>\n","protected":false},"author":5,"featured_media":53103,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41,596,49,598,39],"tags":[27989,710],"class_list":["post-53100","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cikkek","category-erdekes","category-hirek","category-tudomany","category-vilag","tag-dinoszauruszok","tag-kutatas"],"_links":{"self":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/posts\/53100","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=53100"}],"version-history":[{"count":0,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/posts\/53100\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/media\/53103"}],"wp:attachment":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=53100"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=53100"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=53100"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}