[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.subasta.cz\/proc-savci-nahradili-dinosaury\/#Article","mainEntityOfPage":"https:\/\/www.subasta.cz\/proc-savci-nahradili-dinosaury\/","headline":"Pro\u010d savci nahradili dinosaury","name":"Pro\u010d savci nahradili dinosaury","description":"V\u0161ichni v\u00edme, \u017ee p\u0159ed zhruba 69 miliony let do\u0161lo ke katastrof\u011b, kter\u00e1 zp\u016fsobila vyhynut\u00ed velk\u00e9...","datePublished":"2022-03-31","dateModified":"2023-06-13","author":{"@type":"Person","@id":"https:\/\/www.subasta.cz\/author\/#Person","name":"","url":"https:\/\/www.subasta.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/42264ea8f5170010011c6bbf811aa6c31c20ad3acf2a9bd21dca0746ea8c832a?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/42264ea8f5170010011c6bbf811aa6c31c20ad3acf2a9bd21dca0746ea8c832a?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"subasta.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.subasta.cz\/wp-content\/uploads\/dinosaur1.png","url":"https:\/\/www.subasta.cz\/wp-content\/uploads\/dinosaur1.png","height":0,"width":0},"url":"https:\/\/www.subasta.cz\/proc-savci-nahradili-dinosaury\/","about":["Zv\u00ed\u0159ata"],"wordCount":431,"articleBody":"V\u0161ichni v\u00edme, \u017ee p\u0159ed zhruba 69 miliony let do\u0161lo ke katastrof\u011b, kter\u00e1 zp\u016fsobila vyhynut\u00ed velk\u00e9 \u010d\u00e1sti dinosaur\u016f. O jej\u00ed p\u0159\u00ed\u010din\u011b se doposud debatuje, a\u010dkoliv se v\u00a0sou\u010dasnosti jako nejpravd\u011bpodobn\u011bj\u0161\u00ed jev\u00ed n\u00e1raz velk\u00e9ho asteroidu do m\u00edsta, kde se dnes nach\u00e1z\u00ed poloostrov Yucat\u00e1n.\u00a0Av\u0161ak a\u0165 u\u017e se stalo cokoliv, n\u00e1sledky jsou nezpochybniteln\u00e9 \u2013 \u00e9ra dinosaur\u016f skon\u010dila a na jejich m\u00edsto nastoupili savci. Zde se v\u0161ak m\u016f\u017eeme pt\u00e1t, pro\u010d pr\u00e1v\u011b oni, a ne nap\u0159\u00edklad hmyz, jako tomu bylo v\u00a0druhohor\u00e1ch. Co m\u011bli na\u0161i p\u0159edkov\u00e9 za v\u00fdhody?\u00a0\u00a0V\u00a0prvn\u00ed \u0159ad\u011b to byla teplokrevnost a s\u00a0n\u00ed souvisej\u00edc\u00ed schopnost si sami regulovat t\u011blesnou teplotu. V\u00a0tom jim pom\u00e1hala tak\u00e9 jejich srst, kter\u00e1 izolovala l\u00e9pe ne\u017e dinosau\u0159\u00ed proto-pe\u0159\u00ed. Jejich v\u00a0t\u00e9 dob\u011b mal\u00e1 velikost znamenala, \u017ee nepot\u0159ebovali p\u0159\u00edli\u0161 mnoho potravy, a coby v\u0161e\u017eravci se mohli \u017eivit prakticky \u010d\u00edmkoliv, co bylo po ruce, \u010di sp\u00ed\u0161e po tlapce.\u00a0T\u00edm hlavn\u00edm d\u016fvodem \u00fasp\u011bchu v\u0161ak bylo to, \u017ee nesn\u00e1\u0161eli vaj\u00ed\u010dka, n\u00fdbr\u017e jejich ml\u00e1\u010fata prod\u011bl\u00e1vala sv\u016fj v\u00fdvoj ji\u017e v\u00a0t\u011ble matky. To zna\u010dn\u011b zvy\u0161ovalo jejich \u0161ance na p\u0159e\u017eit\u00ed, nebo\u0165 ji\u017e nehrozilo, \u017ee vejce se\u017eere pred\u00e1tor, p\u0159\u00edpadn\u011b embrya zahynou vlivem nep\u0159\u00edzniv\u00e9ho po\u010das\u00ed. To jsou koneckonc\u016f v\u011bci, kter\u00e9 savc\u016fm pom\u00e1haj\u00ed dodnes.\u00a0\u00a0Je tedy pochopiteln\u00e9, \u017ee kdy\u017e se po hromadn\u00e9m vym\u00edr\u00e1n\u00ed uvolnil \u017eivotn\u00ed prostor, savci jej velice rychle zaplnili. Samoz\u0159ejm\u011b, existoval zde i hmyz, av\u0161ak je pot\u0159eba si uv\u011bdomit, \u017ee v\u00a0t\u00e9 dob\u011b ji\u017e nebyl obsah kysl\u00edku v\u00a0atmosf\u00e9\u0159e tak vysok\u00fd, a tud\u00ed\u017e p\u0159\u00edslu\u0161n\u00edci suchozemsk\u00fdch bezobratl\u00fdch ji\u017e nemohli dos\u00e1hnout takov\u00e9 velikosti.\u00a0Samoz\u0159ejm\u011b, zdaleka ne v\u0161ichni dinosau\u0159i zahynuli. N\u011bkter\u00e9 druhy p\u0159e\u017eily, av\u0161ak vesm\u011bs se jednalo o ty men\u0161\u00ed, p\u0159izp\u016fsobiv\u011bj\u0161\u00ed typy. A nyn\u00ed, kdy\u017e ji\u017e neexistovali skute\u010dn\u011b velc\u00ed pred\u00e1to\u0159i, nebo alespo\u0148 ani zdaleka ne v\u00a0takov\u00e9m mno\u017estv\u00ed, m\u011bli savci cestu k\u00a0\u00fasp\u011bchu otev\u0159enou.\u00a0Nen\u00ed tedy divu, \u017ee netrvalo dlouho a rozrostli se v\u00a0\u0161irokou \u0161k\u00e1lu rod\u016f a druh\u016f, jak postupn\u011b zapl\u0148ovali r\u016fzn\u00e9 ekologick\u00e9 niky. A tak tomu je a\u017e dodnes, a\u010dkoliv je samoz\u0159ejm\u011b ot\u00e1zkou, jak dlouho bude tato \u00fasp\u011b\u0161n\u00e1 cesta je\u0161t\u011b pokra\u010dovat, stejn\u011b jako to, kdo nastoup\u00ed po nich.                                                                                                                                                                                                                                                                                                                                                                                        4.1\/5 - (9 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Pro\u010d savci nahradili dinosaury","item":"https:\/\/www.subasta.cz\/proc-savci-nahradili-dinosaury\/#breadcrumbitem"}]}]