{"id":76106,"date":"2026-05-05T09:17:10","date_gmt":"2026-05-05T09:17:10","guid":{"rendered":"https:\/\/www.europesays.com\/cz\/76106\/"},"modified":"2026-05-05T09:17:10","modified_gmt":"2026-05-05T09:17:10","slug":"starsi-nez-saturnovy-prstence-zraloci-vladli-oceanum-driv-nez-se-objevili-prvni-dinosauri","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/cz\/76106\/","title":{"rendered":"Star\u0161\u00ed ne\u017e Saturnovy prstence. \u017draloci vl\u00e1dli oce\u00e1n\u016fm d\u0159\u00edv, ne\u017e se objevili prvn\u00ed dinosau\u0159i"},"content":{"rendered":"<p class=\"e_cy\">Lidsk\u00fd mozek m\u00e1 obrovsk\u00fd probl\u00e9m s\u00a0ch\u00e1p\u00e1n\u00edm hlubok\u00e9ho \u010dasu. Na\u0161e \u017eivoty trvaj\u00ed v\u00a0pr\u016fm\u011bru zhruba osmdes\u00e1t let, tak\u017ee cokoliv, co se ud\u00e1lo p\u0159ed n\u011bkolika tis\u00edcilet\u00edmi, vn\u00edm\u00e1me jako d\u00e1vn\u00fd, t\u011b\u017eko uchopiteln\u00fd prav\u011bk. \u010casto podl\u00e9h\u00e1me iluzi, \u017ee d\u011bjiny planety plynuly v\u00a0\u00fahledn\u00fdch, logick\u00fdch bloc\u00edch. Dinosau\u0159i \u017eili s\u00a0ob\u0159\u00edmi kapradinami, pak p\u0159i\u0161el ni\u010div\u00fd meteorit, n\u00e1sledovala doba ledov\u00e1, mamuti a\u00a0nakonec my.<\/p>\n<p class=\"e_cy\">Kdy\u017e se geologov\u00e9 a\u00a0astrofyzici rozhodli polo\u017eit \u010dasov\u00e9 osy biologick\u00e9 evoluce a\u00a0vesm\u00edrn\u00fdch ud\u00e1lost\u00ed vedle sebe, narazili na \u0161okuj\u00edc\u00ed zji\u0161t\u011bn\u00ed. Objevili asymetrii, kter\u00e1 zn\u00ed jako absolutn\u00ed pop\u0159en\u00ed p\u0159\u00edrodn\u00edch z\u00e1kon\u016f. Uk\u00e1zalo se, \u017ee v\u011bci, kter\u00e9 pova\u017eujeme za naprost\u00fd z\u00e1klad na\u0161eho sv\u011bta\u00a0\u2013 jako je t\u0159eba oby\u010dejn\u00e1 proch\u00e1zka letn\u00edm lesem\u00a0\u2013 jsou vlastn\u011b obrovskou evolu\u010dn\u00ed novinkou. A\u00a0naopak tvorov\u00e9, kte\u0159\u00ed n\u00e1s d\u011bs\u00ed svou zd\u00e1nlivou primitivnost\u00ed, jsou o\u010dit\u00fdmi kronik\u00e1\u0159i d\u011bjin, o\u00a0nich\u017e si n\u00e1\u0161 rozum odm\u00edt\u00e1 nechat by\u0165 jen zd\u00e1t. To, co n\u00e1sleduje, zaru\u010den\u011b p\u0159evr\u00e1t\u00ed va\u0161e dosavadn\u00ed ch\u00e1p\u00e1n\u00ed \u010dasu naruby.<\/p>\n<p>Sv\u011bt bez st\u00ednu a\u00a0bez d\u0159eva<\/p>\n<p class=\"e_cy\">Abychom pln\u011b pochopili tento fascinuj\u00edc\u00ed \u010dasov\u00fd paradox, mus\u00edme se vr\u00e1tit o\u00a0zhruba 450\u00a0milion\u016f let zp\u011bt do minulosti. Nach\u00e1z\u00edme se v\u00a0obdob\u00ed ordoviku a\u00a0siluru. Kdybyste tehdy m\u011bli k\u00a0dispozici stroj \u010dasu a\u00a0vystoupili na prehistorickou pevninu, pravd\u011bpodobn\u011b byste si mysleli, \u017ee jste pr\u00e1v\u011b p\u0159ist\u00e1li na nehostinn\u00e9m Marsu. Na Zemi tehdy nerostl ani jeden jedin\u00fd strom. Nebyly tu absolutn\u011b \u017e\u00e1dn\u00e9 ke\u0159e, \u017e\u00e1dn\u00e1 k\u016fra, dokonce ani \u017e\u00e1dn\u00e9 listy, kter\u00e9 by vrhaly sp\u00e1sn\u00fd st\u00edn. Pevninu tvo\u0159ila jen mrtv\u00e1, tich\u00e1 a\u00a0pust\u00e1 sk\u00e1la vytrvale bi\u010dovan\u00e1 krut\u00fdm v\u011btrem, maxim\u00e1ln\u011b porostl\u00e1 tenk\u00fdm kobercem primitivn\u00edch mech\u016f a\u00a0li\u0161ejn\u00edk\u016f.<\/p>\n<p class=\"e_cy\">Zat\u00edmco pevnina byla mrtvou a\u00a0pustou z\u00f3nou bez slo\u017eit\u011bj\u0161\u00edho \u017eivota, pod hladinou oce\u00e1nu u\u017e d\u00e1vno prob\u00edhala krvav\u00e1 a\u00a0vysoce vysp\u011bl\u00e1 evolu\u010dn\u00ed bitva. A\u00a0pr\u00e1v\u011b v\u00a0tomto obdob\u00ed se v\u00a0temn\u00fdch, neprozkouman\u00fdch hlubin\u00e1ch zrodil absolutn\u00ed vl\u00e1dce.<\/p>\n<p>Vesm\u00edrn\u00e1 anom\u00e1lie: Skute\u010dn\u00fd v\u011bdeck\u00fd zvrat<\/p>\n<p class=\"e_cy\">Pr\u00e1v\u011b tady toti\u017e p\u0159ich\u00e1z\u00ed ten skute\u010dn\u00fd v\u011bdeck\u00fd zvrat. Pokud je pro v\u00e1s obt\u00ed\u017en\u00e9 vst\u0159ebat fakt, \u017ee \u017eralok je star\u0161\u00ed ne\u017e strom, pod\u00edvejme se rovnou nahoru. Mnohem d\u00e1l ne\u017e jen na \u0161pi\u010dky les\u016f. Pod\u00edvejme se na samotnou slune\u010dn\u00ed soustavu.<\/p>\n<p class=\"e_cy\">Symbolem astronomie a\u00a0jedn\u00edm z\u00a0nejv\u00edce ikonick\u00fdch \u00fakaz\u016f na\u0161eho vesm\u00edrn\u00e9ho sousedstv\u00ed je bezpochyby planeta Saturn a\u00a0jej\u00ed majest\u00e1tn\u00ed prstence. Dlouho jsme se logicky domn\u00edvali, \u017ee tyto prstence vznikly spole\u010dn\u011b s\u00a0planetou p\u0159i samotn\u00e9m formov\u00e1n\u00ed slune\u010dn\u00ed soustavy p\u0159ed 4,5\u00a0miliardami let. Nejnov\u011bj\u0161\u00ed anal\u00fdzy dat z\u00a0americk\u00e9 vesm\u00edrn\u00e9 sondy Cassini v\u0161ak v\u011bdc\u016fm p\u0159inesly naprost\u00fd \u0161ok.<\/p>\n<p class=\"e_cy\">Co to znamen\u00e1 v\u00a0praxi? Znamen\u00e1 to naprost\u00e9 naru\u0161en\u00ed na\u0161\u00ed lidsk\u00e9 logiky. P\u0159edstavte si to na jednoduch\u00e9 analogii: budujete zbrusu nov\u00e9 m\u011bsto. \u017dralok p\u0159edstavuje z\u00e1kladn\u00ed k\u00e1men polo\u017een\u00fd na \u00fapln\u00e9m za\u010d\u00e1tku stavby. Stromy jsou domy, kter\u00e9 se na m\u00edst\u011b postavily o\u00a0cel\u00fdch sto let pozd\u011bji. A\u00a0prstence Saturnu? To je jen k\u0159iklav\u00fd neonov\u00fd n\u00e1pis, kter\u00fd tam n\u011bkdo na nebe pov\u011bsil teprve minul\u00fd t\u00fdden.<\/p>\n<p class=\"e_cy\">Kdyby m\u011bl prehistorick\u00fd \u017eralok v\u00a0prav\u011bk\u00fdch oce\u00e1nech k\u00a0dispozici dalekohled a\u00a0pod\u00edval se j\u00edm na no\u010dn\u00ed oblohu, vid\u011bl by Saturn jen jako oby\u010dejnou, nahou a\u00a0nudnou kouli plynu bez jak\u00fdchkoliv prstenc\u016f. Tento ob\u00e1van\u00fd pozemsk\u00fd pred\u00e1tor tak nen\u00ed jen star\u0161\u00ed ne\u017e v\u0161echny hlubok\u00e9 lesy na sv\u011bt\u011b. Je dokonce star\u0161\u00ed ne\u017e ten absolutn\u011b nejslavn\u011bj\u0161\u00ed kosmick\u00fd \u00fatvar v\u00a0cel\u00e9 na\u0161\u00ed slune\u010dn\u00ed soustav\u011b.<\/p>\n<p>Jak \u00fasp\u011b\u0161n\u011b oklamat p\u011bt apokalyps<\/p>\n<p class=\"e_cy\">Jak je ale v\u016fbec mo\u017en\u00e9, \u017ee jeden jedin\u00fd \u017eivo\u010di\u0161n\u00fd druh dok\u00e1zal vzdorovat zubu \u010dasu v\u00a0tak nepochopiteln\u00e9m m\u011b\u0159\u00edtku? B\u011bhem on\u011bch 450\u00a0milion\u016f let si toti\u017e planeta Zem\u011b pro\u0161la doslova peklem. Za\u017eila rovnou <a data-dot=\"atm-link\" target=\"_blank\" rel=\"ugc noopener nofollow\" href=\"https:\/\/ourworldindata.org\/mass-extinctions\" class=\"e_x\">p\u011bt takzvan\u00fdch ud\u00e1lost\u00ed velk\u00e9ho masov\u00e9ho vym\u00edr\u00e1n\u00ed<\/a> (v\u010detn\u011b ni\u010div\u00e9ho dopadu asteroidu, kter\u00fd nav\u017edy smazal dinosaury). Oce\u00e1ny se va\u0159ily, zamrzaly, p\u0159ich\u00e1zely o\u00a0\u017eivotod\u00e1rn\u00fd kysl\u00edk a\u00a0st\u00e1valy se z\u00a0nich toxick\u00e9 kyselinov\u00e9 l\u00e1zn\u011b. Z\u00a0povrchu planety i\u00a0z hlubin zmizely tis\u00edce \u017eivo\u010di\u0161n\u00fdch druh\u016f, ob\u0159\u00edch mo\u0159sk\u00fdch je\u0161t\u011br\u016f i\u00a0d\u011bsiv\u00fdch panc\u00e9\u0159nat\u00fdch ryb.<\/p>\n<p class=\"e_cy\">Ale \u017eralok z\u016fstal. Evoluce toti\u017e v\u00a0jeho p\u0159\u00edpad\u011b narazila na absolutn\u00ed biologick\u00fd jackpot a\u00a0vytvo\u0159ila dokonalou zbra\u0148, kterou u\u017e nikdy pozd\u011bji nemusela z\u00e1sadn\u011b p\u0159ed\u011bl\u00e1vat.<\/p>\n<p class=\"e_cy\">Tajemstv\u00ed \u017eralo\u010d\u00ed nesmrtelnosti spo\u010d\u00edv\u00e1 p\u0159edev\u0161\u00edm v\u00a0t\u011bchto t\u0159ech faktorech:<\/p>\n<p>Chrupav\u010dit\u00e1 kostra: Zat\u00edmco ostatn\u00ed tvorov\u00e9 investovali obrovsk\u00e9 mno\u017estv\u00ed energie do budov\u00e1n\u00ed t\u011b\u017ek\u00fdch, pevn\u00fdch kost\u00ed z\u00e1visl\u00fdch na v\u00e1pn\u00edku, \u017eraloci proz\u0159eteln\u011b vsadili na chrupavku. Je lehk\u00e1, extr\u00e9mn\u011b ohebn\u00e1 a hoj\u00ed se mnohem rychleji.Senzorick\u00e1 dokonalost: \u017draloci nevid\u00ed jen o\u010dima. Maj\u00ed k dispozici takzvan\u00e9 Lorenziniho ampule \u2013 speci\u00e1ln\u00ed receptory na ryp\u00e1ku, kter\u00e9 dok\u00e1\u017eou neomyln\u011b vn\u00edmat slab\u00e9 elektrick\u00e9 pole vyd\u00e1van\u00e9 svaly prchaj\u00edc\u00ed ko\u0159isti. \u017dralok tak doslova \u201esly\u0161\u00ed\u201c tlukot va\u0161eho srdce i na stovky metr\u016f daleko.Hlubokomo\u0159sk\u00fd kryt: Kdy\u017e na planetu dopadl asteroid, kter\u00fd spolehliv\u011b zabil dinosaury a zni\u010dil bohat\u00e9 potravn\u00ed \u0159et\u011bzce na m\u011bl\u010din\u00e1ch, mnoho druh\u016f \u017eralok\u016f se dok\u00e1zalo v\u010das st\u00e1hnout do extr\u00e9mn\u00edch hlubin. Zde se jejich metabolismus zpomal\u00ed na naprost\u00e9 minimum a tvor dok\u00e1\u017ee v temnot\u011b p\u0159e\u017e\u00edt obrovsk\u00fd nedostatek potravy i po cel\u00e9 dek\u00e1dy.<\/p>\n<p class=\"e_cy\">\u010cas je mimo\u0159\u00e1dn\u011b krut\u00fd a\u00a0nekompromisn\u00ed soudce. Neust\u00e1le ma\u017ee z\u00a0evolu\u010dn\u00ed tabule druhy, kter\u00e9 se nedok\u00e1\u017eou v\u010das p\u0159izp\u016fsobit n\u00e1hl\u00fdm zm\u011bn\u00e1m. A\u017e se ale p\u0159\u00ed\u0161t\u011b p\u016fjdete proj\u00edt do hlubok\u00e9ho, star\u00e9ho lesa a\u00a0budete s\u00a0\u00factou obdivovat mohutn\u00e9 kmeny strom\u016f, nebo a\u017e se pod\u00edv\u00e1te do encyklopedie na z\u00e1\u0159\u00edc\u00ed prstence Saturnu, vzpome\u0148te si na to nejd\u016fle\u017eit\u011bj\u0161\u00ed. V\u016fbec nic z\u00a0toho tu je\u0161t\u011b nebylo, kdy\u017e ten \u0161ed\u00fd, neviditeln\u00fd st\u00edn pod hladinou poprv\u00e9 otev\u0159el sv\u00e9 \u010dern\u00e9 o\u010di a\u00a0uc\u00edtil ve vod\u011b krev.<\/p>\n<p class=\"e_cy\">D\u011bkuji, \u017ee jste se mnou s\u00a0odvahou nahl\u00e9dli do d\u011bjin, kter\u00e9 pop\u00edraj\u00ed n\u00e1\u0161 selsk\u00fd rozum! Pokud v\u00e1s fascinuje p\u0159edstava, \u017ee pod hladinou oce\u00e1nu dodnes plave \u017eivouc\u00ed fosilie, kter\u00e1 je star\u0161\u00ed ne\u017e prstence Saturnu i\u00a0v\u0161echny lesy sv\u011bta, budu moc r\u00e1d za va\u0161i podporu. I\u00a0drobn\u00fd symbolick\u00fd p\u0159\u00edsp\u011bvek v\u00a0cen\u011b jedn\u00e9 k\u00e1vy mi pom\u016f\u017ee d\u00e1l bedliv\u011b sledovat tyto \u00fachvatn\u00e9 \u010dasov\u00e9 paradoxy a\u00a0p\u0159in\u00e1\u0161et v\u00e1m fakta, je\u017e doslova berou dech.<\/p>\n<p>Do\u010detli jste a\u017e sem? Podpo\u0159te autora libovolnou \u010d\u00e1stkou.<\/p>\n","protected":false},"excerpt":{"rendered":"Lidsk\u00fd mozek m\u00e1 obrovsk\u00fd probl\u00e9m s\u00a0ch\u00e1p\u00e1n\u00edm hlubok\u00e9ho \u010dasu. Na\u0161e \u017eivoty trvaj\u00ed v\u00a0pr\u016fm\u011bru zhruba osmdes\u00e1t let, tak\u017ee cokoliv, co&hellip;\n","protected":false},"author":2,"featured_media":76107,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[24561,486,24560,16173,74,73,78,75,77,76,437,15748],"class_list":{"0":"post-76106","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-veda-a-technika","8":"tag-dinosaurus","9":"tag-pravek","10":"tag-prirodoveda","11":"tag-saturn","12":"tag-science","13":"tag-science-technology","14":"tag-technika","15":"tag-technology","16":"tag-veda","17":"tag-veda-a-technika","18":"tag-zajimavosti","19":"tag-zraloci"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@cz\/116521221940608348","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts\/76106","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/comments?post=76106"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts\/76106\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/media\/76107"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/media?parent=76106"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/categories?post=76106"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/tags?post=76106"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}