{"id":17797,"date":"2021-12-12T11:04:46","date_gmt":"2021-12-12T11:04:46","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=17797"},"modified":"2021-12-12T11:04:46","modified_gmt":"2021-12-12T11:04:46","slug":"quetzalcoatlus-the-largest-flying-creature-ever","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/cs\/science\/paleontology\/quetzalcoatlus-the-largest-flying-creature-ever\/","title":{"rendered":"Quetzalcoatlus: Nejv\u011bt\u0161\u00ed l\u00e9taj\u00edc\u00ed tvor, jak\u00fd kdy \u017eil"},"content":{"rendered":"

Quetzalcoatlus: Nejv\u011bt\u0161\u00ed l\u00e9taj\u00edc\u00ed tvor v\u0161ech dob<\/h2>\n\n

Objev a popis<\/h2>\n\n

Quetzalcoatlus, \u010dlen starov\u011bk\u00e9 skupiny l\u00e9taj\u00edc\u00edch plaz\u016f zn\u00e1m\u00fdch jako ptakoje\u0161t\u011b\u0159i, byl objeven asi p\u0159ed 50 lety. Byl to nejv\u011bt\u0161\u00ed l\u00e9taj\u00edc\u00ed tvor, jak\u00fd kdy \u017eil, s postavou podobnou \u017eiraf\u011b, tenk\u00fdmi kon\u010detinami, mohutn\u00fdm zob\u00e1kem a rozp\u011bt\u00edm k\u0159\u00eddel a\u017e 40 stop.<\/p>\n\n

Z\u00e1hada letu<\/h2>\n\n

P\u0159es sv\u016fj objev se v\u011bdci pot\u00fdkali s pochopen\u00edm toho, jak se Quetzalcoatlus dok\u00e1zal se sv\u00fdm obrovsk\u00fdm t\u011blem odlepit od zem\u011b a vzl\u00e9tnout. P\u0159edchoz\u00ed hypot\u00e9zy nazna\u010dovaly, \u017ee b\u011b\u017eel a m\u00e1val k\u0159\u00eddly nebo se odr\u00e1\u017eel od \u0161pi\u010dek k\u0159\u00eddel.<\/p>\n\n

Nov\u00fd v\u00fdzkum<\/h2>\n\n

Ned\u00e1vn\u00e1 studie publikovan\u00e1 v \u010dasopise Journal of Vertebrate Paleontology vrh\u00e1 nov\u00e9 sv\u011btlo na letov\u00fd mechanismus Quetzalcoatla. V\u011bdci analyzovali soubor kost\u00ed vykopan\u00fdch v n\u00e1rodn\u00edm parku Big Bend v Texasu, v\u010detn\u011b kost\u00ed men\u0161\u00edho, nov\u011b identifikovan\u00e9ho druhu Quetzalcoatla s rozp\u011bt\u00edm k\u0159\u00eddel 20 stop.<\/p>\n\n

Odhalen\u00ed startovac\u00edho mechanismu<\/h2>\n\n

S pomoc\u00ed leteck\u00e9ho in\u017een\u00fdra a biomechanika t\u00fdm zjistil, \u017ee se Quetzalcoatlus odrazil do vzduchu tak, \u017ee se skr\u010dil a pot\u00e9 se vymr\u0161til osm stop vzh\u016fru. To mu poskytlo dostate\u010dnou v\u00fd\u0161ku od zem\u011b, aby mohl m\u00e1vat k\u0159\u00eddly a vytvo\u0159it vztlak.<\/p>\n\n

Letov\u00e9 schopnosti<\/h2>\n\n

Jakmile byl Quetzalcoatlus ve vzduchu, byl zdatn\u00fdm letcem. Jeho obrovsk\u00e1 hrudn\u00ed kost poskytovala dostatek \u00fachyt\u016f pro jeho siln\u00e9 l\u00e9tac\u00ed svaly. V\u011bdci se domn\u00edvaj\u00ed, \u017ee mohl ladn\u011b klouzat vzduchem.<\/p>\n\n

Habitat a loveck\u00e9 chov\u00e1n\u00ed<\/h2>\n\n

D\u016fkazy nazna\u010duj\u00ed, \u017ee Quetzalcoatlus ob\u00fdval st\u00e1lezelen\u00e9 lesy a lovil ve vodn\u00edch \u00fatvarech. V\u011bt\u0161\u00ed druh p\u0159ipom\u00ednal volavku, brodil se v m\u011bl\u010din\u00e1ch a pou\u017e\u00edval sv\u016fj dlouh\u00fd zob\u00e1k k chyt\u00e1n\u00ed krab\u016f, ml\u017e\u016f a \u010derv\u016f. Men\u0161\u00ed druh se mohl alespo\u0148 \u010d\u00e1st roku shlukovat.<\/p>\n\n

\u017div\u00e1, d\u00fdchaj\u00edc\u00ed stvo\u0159en\u00ed<\/h2>\n\n

V\u011bdci zd\u016fraz\u0148uj\u00ed d\u016fle\u017eitost pohledu na Quetzalcoatla nejen jako na fos\u00edlie, ale jako na \u017eiv\u00e1, d\u00fdchaj\u00edc\u00ed zv\u00ed\u0159ata. Porovn\u00e1n\u00edm s modern\u00edmi zv\u00ed\u0159aty s podobn\u00fdmi typy t\u011bla mohou v\u011bdci z\u00edskat poznatky o jeho chov\u00e1n\u00ed a ekologii.<\/p>\n\n

Budouc\u00ed v\u00fdzkum<\/h2>\n\n

A\u010dkoli tato studie poskytuje dosud nejkomplexn\u011bj\u0161\u00ed pochopen\u00ed Quetzalcoatla, v\u011bdci doufaj\u00ed, \u017ee odhal\u00ed dal\u0161\u00ed tajemstv\u00ed prost\u0159ednictv\u00edm budouc\u00edch vykop\u00e1vek v n\u00e1rodn\u00edm parku Big Bend. Dal\u0161\u00ed objevy fos\u00edli\u00ed by mohly d\u00e1le zp\u0159esnit na\u0161e ch\u00e1p\u00e1n\u00ed t\u011bchto velkolep\u00fdch tvor\u016f.<\/p>","protected":false},"excerpt":{"rendered":"

Quetzalcoatlus: Nejv\u011bt\u0161\u00ed l\u00e9taj\u00edc\u00ed tvor v\u0161ech dob Objev a popis Quetzalcoatlus, \u010dlen starov\u011bk\u00e9 skupiny l\u00e9taj\u00edc\u00edch plaz\u016f zn\u00e1m\u00fdch jako ptakoje\u0161t\u011b\u0159i, byl objeven asi p\u0159ed 50 lety. Byl to nejv\u011bt\u0161\u00ed l\u00e9taj\u00edc\u00ed tvor, jak\u00fd…<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[138],"tags":[23325,23328,23326,137,5061,20705,23324,23327],"class_list":["post-17797","post","type-post","status-publish","format-standard","hentry","category-paleontology","tag-flying-creature","tag-flight-mechanism","tag-largest-flying-animal","tag-paleontology","tag-prehistoric-wildlife","tag-pterosaur","tag-quetzalcoatlus","tag-ancient-giant"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/17797","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\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/comments?post=17797"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/17797\/revisions"}],"predecessor-version":[{"id":17798,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/17797\/revisions\/17798"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=17797"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=17797"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=17797"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}