[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.vidivici.cz\/sebedestruktivni-chobotnice\/#Article","mainEntityOfPage":"https:\/\/www.vidivici.cz\/sebedestruktivni-chobotnice\/","headline":"Sebedestruktivn\u00ed chobotnice","name":"Sebedestruktivn\u00ed chobotnice","description":"Kor\u00e1lov\u00e9 \u00fatesy, pelagick\u00e9 vody i mo\u0159sk\u00e1 dna, to ob\u00fdvaj\u00ed m\u011bkk\u00fd\u0161i t\u0159\u00eddy hlavono\u017ec\u016f, tedy chobotnice. V dne\u0161n\u00ed dob\u011b je zn\u00e1me sp\u00ed\u0161e z tal\u00ed\u0159e pln\u00e9ho mo\u0159sk\u00fdch plod\u016f, ve skute\u010dnosti tito kr\u00e1sn\u00ed \u017eivo\u010dichov\u00e9 ob\u00fdvaj\u00ed r\u016fzn\u00e9 \u010d\u00e1sti sv\u011btov\u00e9ho oce\u00e1nu. Jejich t\u011blo je netypick\u00e9 p\u0159edev\u0161\u00edm pro jejich bilater\u00e1ln\u00ed symetrii, tlamu ve tvaru zob\u00e1ku a osm kon\u010detin (chapadel s p\u0159\u00edsavkami), ve …","datePublished":"2022-05-03","dateModified":"2023-04-27","author":{"@type":"Person","@id":"https:\/\/www.vidivici.cz\/author\/#Person","name":"","url":"https:\/\/www.vidivici.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/4006af731f458a56e90e1a4ecbb37f08f11b51b80cb9267b6a6e5547922ff49d?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/4006af731f458a56e90e1a4ecbb37f08f11b51b80cb9267b6a6e5547922ff49d?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"vidivici.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.vidivici.cz\/wp-content\/uploads\/Chapadla%20s%20pr%CC%8Ci%CC%81savkami.jpg","url":"https:\/\/www.vidivici.cz\/wp-content\/uploads\/Chapadla%20s%20pr%CC%8Ci%CC%81savkami.jpg","height":0,"width":0},"url":"https:\/\/www.vidivici.cz\/sebedestruktivni-chobotnice\/","about":["Zv\u00ed\u0159ata"],"wordCount":417,"articleBody":"Kor\u00e1lov\u00e9 \u00fatesy, pelagick\u00e9 vody i mo\u0159sk\u00e1 dna, to ob\u00fdvaj\u00ed m\u011bkk\u00fd\u0161i t\u0159\u00eddy hlavono\u017ec\u016f, tedy chobotnice. V dne\u0161n\u00ed dob\u011b je zn\u00e1me sp\u00ed\u0161e z tal\u00ed\u0159e pln\u00e9ho mo\u0159sk\u00fdch plod\u016f, ve skute\u010dnosti tito kr\u00e1sn\u00ed \u017eivo\u010dichov\u00e9 ob\u00fdvaj\u00ed r\u016fzn\u00e9 \u010d\u00e1sti sv\u011btov\u00e9ho oce\u00e1nu. Jejich t\u011blo je netypick\u00e9 p\u0159edev\u0161\u00edm pro jejich bilater\u00e1ln\u00ed symetrii, tlamu ve tvaru zob\u00e1ku a osm kon\u010detin (chapadel s p\u0159\u00edsavkami), ve kter\u00fdch ke v\u0161em skr\u00fdv\u00e1 inkoust, kter\u00fd vypou\u0161t\u00ed v p\u0159\u00edpad\u011b obrany. D\u00edky sv\u00e9mu t\u011blu, kter\u00e9 je m\u011bkk\u00e9, m\u016f\u017ee proplavat i t\u00edm neju\u017e\u0161\u00edm prostorem a d\u00edky v\u00fdborn\u00e9mu zraku m\u016f\u017ee \u017e\u00edt i v t\u011bch nejv\u011bt\u0161\u00edch hloubk\u00e1ch. Jejich dal\u0161\u00ed schopnost\u00ed je zm\u011bn barvy, co\u017e je jasn\u00e1 kamufl\u00e1\u017e v r\u016fzn\u00e9m prost\u0159ed\u00ed. A nepou\u017e\u00edvaj\u00ed pouze tuto kamufl\u00e1\u017e, ale tak\u00e9 Batesovsk\u00e9 mimikry, d\u00edky kter\u00fd dok\u00e1\u017e\u00ed napodobit jin\u00e1 zv\u00ed\u0159ata jako nap\u0159\u00edklad hada, plat\u00fdse a jin\u00e9 nebezpe\u010dn\u00e9 tvory.Prakticky se chobotnice sna\u017e\u00ed hlavn\u011b zachovat rod p\u0159ed t\u00edm, ne\u017e um\u0159ou. Proto samci ze sv\u00e9ho chapadla vypou\u0161t\u00ed sperma, kter\u00e9 p\u0159ed\u00e1vaj\u00ed samici. Ona se potom ji\u017e postar\u00e1 o vejce v doup\u011bti, kde \u010dek\u00e1, dokud se nevyl\u00edhnou a potom stejn\u011b jako samec um\u0159e. Doposud v\u0161ak bylo z\u00e1hadou, pro\u010d um\u00edr\u00e1, kdy\u017e se jedn\u00e1 o matku ml\u00e1\u010fat.Nov\u00e9 studie se zam\u011b\u0159ily na tuto skute\u010dnost a je velmi obdivuhodn\u00e9 na co p\u0159i\u0161ly. Chobotnice maj\u00ed velmi \u010dasto sklon ke kanibalismu. Velmi jednodu\u0161e se tedy stane, \u017ee matka poj\u00ed sv\u00e9 potomky. Co by matky pro sv\u00e9 d\u011bti neud\u011blaly. Rad\u011bji poj\u00ed samy sebe, ne\u017e aby zakon\u010dily \u017eivot nov\u00e9 generace. Biologicky je pud poj\u00edd\u00e1n\u00ed sama sebe zp\u016fsoben hormony. V\u011bdci p\u0159i\u0161ly na to, \u017ee se v mate\u0159stv\u00ed zv\u00fd\u0161\u00ed hladiny hormon\u016f pregnenolonu a progesteronu, co\u017e nen\u00ed a\u017e tak vz\u00e1cn\u00e9, d\u011bje se to i u jin\u00fdch \u017eivo\u010di\u0161n\u00fdch druh\u016f. Nejz\u00e1sadn\u011bj\u0161\u00ed je ale zv\u00fd\u0161en\u00e1 hladina 7dehydrocholesterolu, kter\u00fd p\u0159iv\u00e1d\u00ed hlavono\u017ece k sebemu\u010den\u00ed a\u017e zahynut\u00ed. Cel\u00e1 logika procesu nen\u00ed st\u00e1le p\u0159esn\u011b jasn\u00e1, nicm\u00e9n\u011b jsme o kr\u016f\u010dek bl\u00ed\u017ee k pochopen\u00ed. Matka tedy chr\u00e1n\u00ed sv\u00e9ho potomka p\u0159ed jej\u00edmi kabalistick\u00fdmi sklony, jak je ta p\u0159\u00edroda fascinuj\u00edc\u00ed.                                                                                                                                                                                                                                                                                                                                                                                        4\/5 - (4 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Sebedestruktivn\u00ed chobotnice","item":"https:\/\/www.vidivici.cz\/sebedestruktivni-chobotnice\/#breadcrumbitem"}]}]