V lomu Mother\u2019s Day, lokalit\u011b bohat\u00e9 na fos\u00edlie dinosaur\u016f, byla objevena lebka mlad\u00e9ho diplodoka zn\u00e1m\u00e9ho jako \u201eAndrew\u201c. Tento objev je v\u00fdznamn\u00fd, proto\u017ee p\u0159edstavuje jeden z nejmlad\u0161\u00edch exempl\u00e1\u0159\u016f diplodoka, jak\u00fd byl kdy nalezen, a nejmen\u0161\u00ed zn\u00e1mou lebku diplodoka v\u016fbec.<\/p>\n\n
Lebka Andrewa se v n\u011bkolika ohledech li\u0161\u00ed od lebek dosp\u011bl\u00fdch diplodok\u016f. Je men\u0161\u00ed, s u\u017e\u0161\u00ed a zaoblen\u011bj\u0161\u00ed tlamou. Tak\u00e9 jej\u00ed zuby vykazuj\u00ed rozd\u00edly, se \u0161pi\u010dat\u00fdmi zuby vp\u0159edu a \u0161ir\u0161\u00edmi, \u201e\u0161pachtleovit\u00fdmi\u201c zuby vzadu.<\/p>\n\n
Tvar Andrewovy tlamy a zub\u016f nazna\u010duje, \u017ee ml\u00e1\u010fata diplodok\u016f m\u011bla odli\u0161n\u00e9 potravn\u00ed n\u00e1vyky ne\u017e dosp\u011bl\u00ed jedinci. Pasouc\u00ed se zv\u00ed\u0159ata maj\u00ed obvykle \u0161irok\u00e9, \u010dtverhrann\u00e9 tlamy, zat\u00edmco b\u00fdlo\u017eravci maj\u00ed u\u017e\u0161\u00ed nebo zaoblen\u011bj\u0161\u00ed tlamy. Andrewova \u00fazk\u00e1 tlama a \u0161pachtleovit\u00e9 zuby nazna\u010duj\u00ed, \u017ee mohl b\u00fdt b\u00fdlo\u017eravcem, kter\u00fd se \u017eivil v\u00fd\u017eivn\u011bj\u0161\u00ed, listnatou vegetac\u00ed.<\/p>\n\n
Rozd\u00edly ve strav\u011b mezi ml\u00e1\u010faty a dosp\u011bl\u00fdmi diplodoky vyvol\u00e1vaj\u00ed ot\u00e1zky ohledn\u011b rodi\u010dovsk\u00e9 p\u00e9\u010de u t\u011bchto dinosaur\u016f. N\u011bkte\u0159\u00ed dinosau\u0159i, stejn\u011b jako n\u011bkte\u0159\u00ed dne\u0161n\u00ed pt\u00e1ci, projevovali rodi\u010dovskou p\u00e9\u010di, jako je sezen\u00ed na hn\u00edzd\u011b a krmen\u00ed ml\u00e1\u010fat. D\u016fkazy v\u0161ak nazna\u010duj\u00ed, \u017ee diplodokov\u00e9, podobn\u011b jako mo\u0159sk\u00e9 \u017eelvy, kladli velk\u00e9 sn\u016f\u0161ky vajec a nechali sv\u00e9 potomky, aby se o sebe postarali sami.<\/p>\n\n
Andrewovy zuby podporuj\u00ed p\u0159edstavu nez\u00e1visl\u00fdch ml\u00e1\u010fat. Pokud by dosp\u011bl\u00ed diplodokov\u00e9 p\u0159in\u00e1\u0161eli rostliny sv\u00fdm ml\u00e1\u010fat\u016fm, pro\u010d by pak ml\u00e1\u010fata m\u011bla zuby specializovan\u00e9 na r\u016fzn\u00e9 druhy vegetace?<\/p>\n\n
V n\u011bkter\u00fdch ohledech se Andrewova lebka podob\u00e1 lebk\u00e1m star\u0161\u00edch sauropod\u016f. To nazna\u010duje, \u017ee by mohla poskytnout poznatky o evolu\u010dn\u00ed historii diplodoka. Jak diplodokus rostl, jeho lebka prod\u011blala v\u00fdznamn\u00e9 zm\u011bny a stala se v\u011bt\u0161\u00ed a prot\u00e1hlej\u0161\u00ed.<\/p>\n\n
Andrew\u016fv objev m\u00e1 potenci\u00e1l zm\u011bnit na\u0161e ch\u00e1p\u00e1n\u00ed diplodoka a jursk\u00e9ho sv\u011bta. Vrh\u00e1 sv\u011btlo na potravn\u00ed n\u00e1vyky, r\u016fstov\u00e9 vzorce a evolu\u010dn\u00ed historii t\u011bchto ob\u0159\u00edch dinosaur\u016f. Studiem Andrewa a dal\u0161\u00edch mlad\u00fdch exempl\u00e1\u0159\u016f mohou paleontologov\u00e9 z\u00edskat komplexn\u011bj\u0161\u00ed p\u0159edstavu o diplodokovi a jeho m\u00edst\u011b v d\u00e1vn\u00e9m ekosyst\u00e9mu.<\/p>\n\n
N\u011bkte\u0159\u00ed v\u011bdci vyj\u00e1d\u0159ili opatrnost ohledn\u011b rekonstrukce Andrewovy lebky. Chyb\u011bj\u00edc\u00ed kosti by mohly potenci\u00e1ln\u011b zm\u011bnit tvar lebky. L\u00e9pe zachoval\u00e1 lebka by pomohla potvrdit interpretace Andrewov\u00fdch potravn\u00edch n\u00e1vyk\u016f.<\/p>\n\n
K \u00fapln\u00e9mu pochopen\u00ed potravn\u00edch strategi\u00ed a r\u016fstov\u00fdch vzorc\u016f diplodoka a dal\u0161\u00edch dinosaur\u016f je zapot\u0159eb\u00ed dal\u0161\u00ed v\u00fdzkum. Studie mikrostruktury kost\u00ed a postkrani\u00e1ln\u00ed anatomie mohou poskytnout cenn\u00e9 poznatky o souvislostech mezi stravou a r\u016fstem u t\u011bchto prehistorick\u00fdch obr\u016f.<\/p>","protected":false},"excerpt":{"rendered":"
Lebka mlad\u00e9ho diplodoka vrh\u00e1 nov\u00e9 sv\u011btlo na \u017eivot dinosaur\u016f Objev a v\u00fdznam V lomu Mother\u2019s Day, lokalit\u011b bohat\u00e9 na fos\u00edlie dinosaur\u016f, byla objevena lebka mlad\u00e9ho diplodoka zn\u00e1m\u00e9ho jako \u201eAndrew\u201c. Tento…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[138],"tags":[134,665,136,239,4561,137,2432,141],"class_list":["post-2183","post","type-post","status-publish","format-standard","hentry","category-paleontology","tag-dinosaurs","tag-diplodocus","tag-evolution","tag-fossils","tag-juvenile-animals","tag-paleontology","tag-prehistoric-life","tag-natural-history"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/2183","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/comments?post=2183"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/2183\/revisions"}],"predecessor-version":[{"id":2184,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/2183\/revisions\/2184"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=2183"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=2183"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=2183"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}