V rozlehl\u00e9 a vyprahl\u00e9 pou\u0161ti Gobi vykopali paleontologov\u00e9 zkamen\u011bl\u00e9 poz\u016fstatky drobn\u00e9ho dinosaura, kter\u00fd upoutal pozornost v\u011bdeck\u00e9 obce. Stvo\u0159en\u00ed, kter\u00e9 dostalo jm\u00e9no Albinykus baatar, je pova\u017eov\u00e1no za jednoho z nejmen\u0161\u00edch dinosaur\u016f, jac\u00ed kdy byli objeveni.<\/p>\n\n
Albinykus pat\u0159\u00ed do zvl\u00e1\u0161tn\u00ed skupiny dinosaur\u016f zn\u00e1m\u00fdch jako alvarezsau\u0159i. Tito z\u00e1hadn\u00ed tvorov\u00e9 se vyzna\u010duj\u00ed svou malou velikost\u00ed, jedine\u010dnou anatomi\u00ed a mo\u017en\u00fdmi mraven\u010d\u00edmi stravovac\u00edmi n\u00e1vyky. Zbytky Albinykuse, nalezen\u00e9 na paleontologick\u00e9m nalezi\u0161ti Khugenetslavkant, sest\u00e1vaj\u00ed p\u0159edev\u0161\u00edm z n\u011bkolika kost\u00ed nohou ulo\u017een\u00fdch v p\u00edskovcov\u00e9m bloku.<\/p>\n\n
P\u0159es omezenou zachovalost dok\u00e1zali paleontologov\u00e9 zrekonstruovat dr\u017een\u00ed t\u011bla Albinykuse v okam\u017eiku jeho smrti. Nohy jsou p\u0159ikr\u010deny pod t\u011blem, co\u017e p\u016fsob\u00ed dojmem, \u017ee dinosaurus sed\u011bl jako pt\u00e1k. Tato neobvykl\u00e1 poloha nazna\u010duje, \u017ee Albinykus mohl b\u00fdt zabit a zakonzervov\u00e1n vsed\u011b.<\/p>\n\n
Odhaduje se, \u017ee Albinykus baatar v\u00e1\u017eil mezi 1,5 a 2 librami, co\u017e ho \u010din\u00ed podstatn\u011b men\u0161\u00edm ne\u017e jeho d\u0159\u00edv\u011bj\u0161\u00edho p\u0159\u00edbuzn\u00e9ho Patagonykuse, kter\u00fd v\u00e1\u017eil p\u0159ibli\u017en\u011b 77 a\u017e 88 liber. Toto drastick\u00e9 zmen\u0161en\u00ed velikosti v pr\u016fb\u011bhu \u010dasu je vz\u00e1cn\u00fd jev mezi coelurosau\u0159i, v\u011bt\u0161\u00ed skupinou, do kter\u00e9 pat\u0159\u00ed alvarezsau\u0159i. Jedin\u00fd dal\u0161\u00ed zn\u00e1m\u00fd p\u0159\u00edpad takto v\u00fdznamn\u00e9ho zmen\u0161en\u00ed velikosti nastal b\u011bhem evoluce prvn\u00edch pt\u00e1k\u016f.<\/p>\n\n
Objev Albinykuse osv\u011btlil evolu\u010dn\u00ed vzorce v r\u00e1mci Alvarezsauroidea. S p\u0159id\u00e1n\u00edm Albinykuse ka\u017ed\u00e1 v\u00fdznamn\u00e1 k\u0159\u00eddov\u00e1 lokalita v pou\u0161ti Gobi poskytla nejm\u00e9n\u011b jednu alvarezsau\u0159\u00ed fosilii, co\u017e nazna\u010duje bohatou a rozmanitou historii t\u011bchto dinosaur\u016f v prehistorick\u00e9 Asii.<\/p>\n\n
\u017divotn\u00ed styl a strava Albinykuse z\u016fst\u00e1vaj\u00ed zahaleny tajemstv\u00edm. Alvarezsau\u0159i obecn\u011b maj\u00ed mnoho mal\u00fdch zub\u016f a siln\u00e9 pa\u017ee zakon\u010den\u00e9 velk\u00fdm dr\u00e1pem, co\u017e je uspo\u0159\u00e1d\u00e1n\u00ed podobn\u00e9 savc\u016fm \u017eiv\u00edc\u00edm se mravenci, jako jsou luskouni a hrab\u00e1\u010di. To vedlo k v\u0161eobecn\u011b p\u0159ij\u00edman\u00e9 hypot\u00e9ze, \u017ee alvarezsau\u0159i byli mravene\u010dt\u00ed dinosau\u0159i.<\/p>\n\n
Definitivn\u00ed d\u016fkazy podporuj\u00edc\u00ed tuto hypot\u00e9zu v\u0161ak dosud nebyly nalezeny. Nebyla objevena \u017e\u00e1dn\u00e1 alvarezsau\u0159\u00ed fosilie s vypov\u00eddaj\u00edc\u00edm st\u0159evn\u00edm obsahem, zkamen\u011bl\u00e1 termiti\u0161t\u011b s po\u0161kozen\u00edm nazna\u010duj\u00edc\u00edm krmen\u00ed alvarezsau\u0159i nebo koprolity (zkamen\u011bl\u00e9 v\u00fdkaly) obsahuj\u00edc\u00ed zbytky mravenc\u016f. A\u010dkoli hypot\u00e9za mravene\u010d\u00edch dinosaur\u016f z\u016fst\u00e1v\u00e1 nejpravd\u011bpodobn\u011bj\u0161\u00edm vysv\u011btlen\u00edm, v\u011bdci nad\u00e1le hledaj\u00ed konkr\u00e9tn\u00ed d\u016fkazy, kter\u00e9 by ji potvrdily.<\/p>\n\n
Objev Albinykuse baatara m\u00e1 v\u00fdznamn\u00e9 d\u016fsledky pro na\u0161e ch\u00e1p\u00e1n\u00ed rozmanitosti a evoluce dinosaur\u016f. Jako jeden z nejmen\u0161\u00edch dosud zn\u00e1m\u00fdch dinosaur\u016f poskytuje Albinykus poznatky o ekologick\u00fdch nik\u00e1ch, kter\u00e9 mohli dinosau\u0159i zauj\u00edmat, a evolu\u010dn\u00edch cest\u00e1ch, kter\u00e9 vedly k diverzifikaci druh\u016f dinosaur\u016f.<\/p>\n\n
Krom\u011b toho p\u0159\u00edtomnost alvarezsau\u0159i na ka\u017ed\u00e9 v\u00fdznamn\u00e9 k\u0159\u00eddov\u00e9 lokalit\u011b v pou\u0161ti Gobi nazna\u010duje, \u017ee tito dinosau\u0159i byli b\u011bhem tohoto geologick\u00e9ho obdob\u00ed roz\u0161\u00ed\u0159en\u00ed a \u00fasp\u011b\u0161n\u00ed. Pokra\u010duj\u00edc\u00ed studium alvarezsau\u0159i, v\u010detn\u011b Albinykuse, bude i nad\u00e1le osv\u011btlovat slo\u017eitou a fascinuj\u00edc\u00ed historii t\u011bchto z\u00e1hadn\u00fdch tvor\u016f.<\/p>","protected":false},"excerpt":{"rendered":"
V\u011bdci objevili jednoho z nejmen\u0161\u00edch dinosaur\u016f v\u016fbec Objev a popis V rozlehl\u00e9 a vyprahl\u00e9 pou\u0161ti Gobi vykopali paleontologov\u00e9 zkamen\u011bl\u00e9 poz\u016fstatky drobn\u00e9ho dinosaura, kter\u00fd upoutal pozornost v\u011bdeck\u00e9 obce. Stvo\u0159en\u00ed, kter\u00e9 dostalo…<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[138],"tags":[18976,134,136,18978,137,18977],"class_list":["post-14108","post","type-post","status-publish","format-standard","hentry","category-paleontology","tag-albinykus-baatar","tag-dinosaurs","tag-evolution","tag-ant-eating-dinosaurs","tag-paleontology","tag-prehistoric-asia"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/14108","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=14108"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/14108\/revisions"}],"predecessor-version":[{"id":14109,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/14108\/revisions\/14109"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=14108"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=14108"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=14108"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}