{"id":2167,"date":"2020-09-23T23:57:53","date_gmt":"2020-09-23T23:57:53","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=2167"},"modified":"2020-09-23T23:57:53","modified_gmt":"2020-09-23T23:57:53","slug":"t-rex-tongue-mobility","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/cs\/science\/biology\/t-rex-tongue-mobility\/","title":{"rendered":"T. Rex pravd\u011bpodobn\u011b nedok\u00e1zal vyplazovat jazyk"},"content":{"rendered":"

T. Rex pravd\u011bpodobn\u011b nedok\u00e1zal vyplazovat jazyk<\/h2>\n\n

Pohyblivost jazyka u dinosaur\u016f<\/h2>\n\n

V\u011bdci zjistili, \u017ee ob\u00e1van\u00fd Tyrannosaurus rex, \u010dasto zobrazovan\u00fd s otev\u0159enou tlamou a pl\u00e1polaj\u00edc\u00edm jazykem, mo\u017en\u00e1 nebyl schopen p\u0159\u00edli\u0161 h\u00fdbat jazykem.<\/p>\n\n

V\u011bdci z University of Texas v Austinu a \u010c\u00ednsk\u00e9 akademie v\u011bd zkoumali p\u0159es 330 zkamen\u011bl\u00fdch exempl\u00e1\u0159\u016f, aby prostudovali jazylky dinosaur\u016f, kter\u00e9 ukotvuj\u00ed jazyk v \u00fastech. Zjistili, \u017ee v\u011bt\u0161ina dinosaur\u016f m\u011bla kr\u00e1tk\u00e9 a jednoduch\u00e9 jazylky, podobn\u00e9 jako maj\u00ed alig\u00e1to\u0159i a krokod\u00fdli, co\u017e nazna\u010duje, \u017ee m\u011bli omezenou pohyblivost jazyka.<\/p>\n\n

Naproti tomu pt\u00e1ci maj\u00ed velmi r\u016fznorod\u00e9 a slo\u017eit\u00e9 jazyky, kter\u00e9 jim umo\u017e\u0148uj\u00ed vysunout jazyk daleko z \u00fast. V\u011bdci zjistili, \u017ee ptakoje\u0161t\u011b\u0159i a pterosau\u0159i m\u011bli tak\u00e9 slo\u017eit\u00e9 jazylky, co\u017e je vedlo k hypot\u00e9ze, \u017ee v\u00fdvoj pohyblivosti jazyka m\u016f\u017ee souviset s letem.<\/p>\n\n

Role letu v pohyblivosti jazyka<\/h2>\n\n

Kdy\u017e se p\u0159edn\u00ed kon\u010detiny prav\u011bk\u00fdch tvor\u016f vyvinuly v k\u0159\u00eddla, pot\u0159ebovali pohybliv\u011bj\u0161\u00ed jazyky, aby manipulovali s potravou. Let mohl tak\u00e9 umo\u017enit dinosaur\u016fm p\u0159\u00edstup k r\u016fzn\u00fdm typ\u016fm potravy, co\u017e vy\u017eadovalo specializovan\u00e9 jazyky a tlamy.<\/p>\n\n

Vliv stravy na pohyblivost jazyka<\/h2>\n\n

Let v\u0161ak nebyl jedin\u00fdm faktorem, kter\u00fd ovlivnil pohyblivost jazyk\u016f dinosaur\u016f. Ornitischia, b\u00fdlo\u017erav\u00e1 skupina dinosaur\u016f, kter\u00e1 zahrnuje triceratopy, m\u011bla tak\u00e9 slo\u017eit\u00e9 jazylky, mo\u017en\u00e1 proto, \u017ee museli d\u016fkladn\u011bji roz\u017ev\u00fdkat potravu ne\u017e maso\u017erav\u00ed dinosau\u0159i, jako byl T. rex.<\/p>\n\n

V\u00fdznam jazylek<\/h2>\n\n

Jazylky hraj\u00ed rozhoduj\u00edc\u00ed roli v porozum\u011bn\u00ed pohyblivosti jazyka dinosaur\u016f. Porovn\u00e1n\u00edm jazylek dinosaur\u016f s jazylkami sou\u010dasn\u00fdch \u017eivo\u010dich\u016f mohou v\u011bdci odvodit rozsah pohybu a obratnosti jazyk\u016f dinosaur\u016f.<\/p>\n\n

V\u00fdvoj pohyblivosti jazyka u dinosaur\u016f<\/h2>\n\n

V\u00fdvoj pohyblivosti jazyka u dinosaur\u016f je slo\u017eit\u00e9 a fascinuj\u00edc\u00ed t\u00e9ma. V\u011bdci se st\u00e1le u\u010d\u00ed o faktorech, kter\u00e9 ovlivnily v\u00fdvoj r\u016fzn\u00fdch jazykov\u00fdch struktur a jejich d\u016fsledky pro chov\u00e1n\u00ed a ekologii dinosaur\u016f.<\/p>\n\n

Vztah mezi pohyblivost\u00ed jazyka a diverzifikac\u00ed druh\u016f dinosaur\u016f<\/h2>\n\n

Pohyblivost jazyka mohla hr\u00e1t v\u00fdznamnou roli v diverzifikaci druh\u016f dinosaur\u016f. Dinosau\u0159i s pohybliv\u011bj\u0161\u00edmi jazyky mohli m\u00edt p\u0159\u00edstup k \u0161ir\u0161\u00ed \u0161k\u00e1le potravinov\u00fdch zdroj\u016f a efektivn\u011bji zpracov\u00e1vat potravu, co\u017e jim d\u00e1valo konkuren\u010dn\u00ed v\u00fdhodu oproti dinosaur\u016fm s m\u00e9n\u011b pohybliv\u00fdmi jazyky.<\/p>\n\n

Role pohyblivosti jazyka v \u00fasp\u011bchu dinosaur\u016f<\/h2>\n\n

Pohyblivost jazyka byla pravd\u011bpodobn\u011b d\u016fle\u017eit\u00fdm faktorem \u00fasp\u011bchu dinosaur\u016f. Umo\u017enila jim vyu\u017e\u00edvat \u0161irokou \u0161k\u00e1lu potravinov\u00fdch zdroj\u016f, p\u0159izp\u016fsobit se r\u016fzn\u00fdm prost\u0159ed\u00edm a diverzifikovat se do mnoha druh\u016f.<\/p>\n\n

Z\u00e1v\u011br<\/h2>\n\n

Objev, \u017ee T. rex a mnoho dal\u0161\u00edch dinosaur\u016f m\u011blo omezenou pohyblivost jazyka, zpochyb\u0148uje na\u0161e tradi\u010dn\u00ed p\u0159edstavy o t\u011bchto prehistorick\u00fdch ob\u0159\u00edch. Z\u00e1rove\u0148 zd\u016fraz\u0148uje d\u016fle\u017eitost studia jemn\u00fdch struktur fosili\u00ed, abychom z\u00edskali hlub\u0161\u00ed porozum\u011bn\u00ed anatomie a chov\u00e1n\u00ed dinosaur\u016f.<\/p>","protected":false},"excerpt":{"rendered":"

T. Rex pravd\u011bpodobn\u011b nedok\u00e1zal vyplazovat jazyk Pohyblivost jazyka u dinosaur\u016f V\u011bdci zjistili, \u017ee ob\u00e1van\u00fd Tyrannosaurus rex, \u010dasto zobrazovan\u00fd s otev\u0159enou tlamou a pl\u00e1polaj\u00edc\u00edm jazykem, mo\u017en\u00e1 nebyl schopen p\u0159\u00edli\u0161 h\u00fdbat jazykem.…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[288],"tags":[134,136,137,4529],"class_list":["post-2167","post","type-post","status-publish","format-standard","hentry","category-biology","tag-dinosaurs","tag-evolution","tag-paleontology","tag-tongue-mobility"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/2167","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=2167"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/2167\/revisions"}],"predecessor-version":[{"id":2168,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/2167\/revisions\/2168"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=2167"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=2167"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=2167"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}