{"id":14847,"date":"2022-06-14T18:59:43","date_gmt":"2022-06-14T18:59:43","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=14847"},"modified":"2022-06-14T18:59:43","modified_gmt":"2022-06-14T18:59:43","slug":"two-headed-snake-returns-to-texas-zoo","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/cs\/science\/animal-science\/two-headed-snake-returns-to-texas-zoo\/","title":{"rendered":"Dvouhlav\u00fd had se vrac\u00ed do texask\u00e9 zoo"},"content":{"rendered":"

Dvouhlav\u00fd had se vrac\u00ed do texask\u00e9 zoo<\/h2>\n\n

Uzdraven\u00ed a n\u00e1vrat<\/h2>\n\n

Po dvoulet\u00e9 pauze na zotaven\u00ed ze zran\u011bn\u00ed se Pancho a Lefty, vz\u00e1cn\u00fd dvouhlav\u00fd had, vr\u00e1tili do centra pozornosti v zoo Cameron Park ve m\u011bst\u011b Waco v Texasu. Nov\u00fd v\u00fdb\u011bh hada je pe\u010dliv\u011b navr\u017een tak, aby zabr\u00e1nil dal\u0161\u00edm zran\u011bn\u00edm.<\/p>\n\n

Vz\u00e1cn\u00e9 onemocn\u011bn\u00ed<\/h2>\n\n

Jedine\u010dn\u00fd stav Pancha a Leftyho, dikcefalie, nast\u00e1v\u00e1, kdy\u017e se jedin\u00e9 embryo za\u010dne d\u011blit na identick\u00e1 dvoj\u010data, ale nedok\u00e1\u017ee se zcela odd\u011blit. Dikcefalie je tak\u00e9 zn\u00e1ma jako siamsk\u00e1 dvoj\u010data u lid\u00ed. V\u011bdci vystopovali tento jev nejm\u00e9n\u011b 150 milion\u016f let zp\u00e1tky, s objevem fos\u00edlie dvouhlav\u00e9ho plaza v \u010c\u00edn\u011b.<\/p>\n\n

Navigace se dv\u011bma mozky<\/h2>\n\n

M\u00edt dv\u011b hlavy a tedy i dva mozky p\u0159edstavuje pro Pancha a Leftyho v\u00fdzvy. Jejich t\u011blo p\u0159ij\u00edm\u00e1 protich\u016fdn\u00e9 sign\u00e1ly ze dvou \u0159\u00edd\u00edc\u00edch center, co\u017e m\u00e1 za n\u00e1sledek nekoordinovan\u00e9 a nemotorn\u00e9 pohyby. Tato jedine\u010dn\u00e1 neurologie zt\u011b\u017euje ka\u017edodenn\u00ed \u00fakoly, jako je pohyb a krmen\u00ed.<\/p>\n\n

Zran\u011bn\u00ed a zotaven\u00ed<\/h2>\n\n

V \u00fanoru 2021 si Pancho a Lefty zranili lev\u00fd krk p\u0159i pokusu o pohyb dv\u011bma r\u016fzn\u00fdmi sm\u011bry sou\u010dasn\u011b. O\u0161et\u0159ovatel\u00e9 zoo rychle odstranili hada z ve\u0159ejn\u00e9ho pohledu, aby usnadnili dlouh\u00fd proces zotaven\u00ed.<\/p>\n\n

R\u00e1na se zcela zahojila za v\u00edce ne\u017e rok. Veterin\u00e1\u0159i n\u00e1sledn\u011b poskytli hadovi dal\u0161\u00ed rok mimo expozici, aby znovu z\u00edskal optim\u00e1ln\u00ed zdrav\u00ed.<\/p>\n\n

Upraven\u00fd v\u00fdb\u011bh<\/h2>\n\n

Sou\u010dasn\u00fd v\u00fdb\u011bh Pancha a Leftyho v budov\u011b sladkovodn\u00edho akv\u00e1ria zoo je navr\u017een tak, aby maximalizoval jejich bezpe\u010dnost a pohodu. Absence kamen\u016f a v\u011btv\u00ed odstra\u0148uje potenci\u00e1ln\u00ed nebezpe\u010d\u00ed, kter\u00e1 by mohla zachytit jejich krky. V\u00fdb\u011bh poskytuje dostatek kryt\u00ed, aby byla zaji\u0161t\u011bna bezpe\u010dnost hada, ani\u017e by byla ohro\u017eena jeho fyzick\u00e1 bezpe\u010dnost.<\/p>\n\n

Fyzik\u00e1ln\u00ed charakteristiky<\/h2>\n\n

V osmi letech m\u011b\u0159\u00ed Pancho a Lefty na d\u00e9lku dva a\u017e t\u0159i stopy, co\u017e je o n\u011bco men\u0161\u00ed ne\u017e typick\u00fd velikostn\u00ed rozsah t\u0159\u00ed a\u017e p\u011bti stop pro z\u00e1padn\u00ed krysy.<\/p>\n\n

Dominantn\u00ed hlava<\/h2>\n\n

Zpo\u010d\u00e1tku byla lev\u00e1 hlava Pancha a Leftyho dominantn\u011bj\u0161\u00ed a spot\u0159ebov\u00e1vala v\u011bt\u0161inu potravy hada. V sou\u010dasn\u00e9 dob\u011b se v\u0161ak zd\u00e1, \u017ee kontrolu p\u0159evzal prav\u00fd mozek. Tato zm\u011bna dominance ovlivnila pohybov\u00e9 vzorce hada.<\/p>\n\n

V\u00fdzvy p\u0159e\u017eit\u00ed v divo\u010din\u011b<\/h2>\n\n

Dvouhlav\u00ed hadi \u010dasto bojuj\u00ed o p\u0159e\u017eit\u00ed v divo\u010din\u011b. Protich\u016fdn\u00e9 neurologick\u00e9 sign\u00e1ly mohou v\u00e9st k nerozhodn\u00e9mu chov\u00e1n\u00ed, zvl\u00e1\u0161t\u011b v kritick\u00fdch chv\u00edl\u00edch, jako je vyh\u00fdb\u00e1n\u00ed se pred\u00e1tor\u016fm. Tato zranitelnost \u010din\u00ed dvouhlav\u00e9 hady n\u00e1chyln\u011bj\u0161\u00edmi k predaci.<\/p>\n\n

P\u0159\u00edpadov\u00e1 studie<\/h2>\n\n

V roce 2020 se rodina na Florid\u011b setkala s dvouhlav\u00fdm ji\u017en\u00edm \u010dern\u00fdm z\u00e1vodn\u00edkem hadem pot\u00e9, co ho jejich ko\u010dka p\u0159inesla do jejich domova. Tento incident zd\u016fraz\u0148uje v\u00fdzvy, kter\u00fdm dvouhlav\u00ed hadi \u010del\u00ed v p\u0159\u00edrodn\u00edm prost\u0159ed\u00ed.<\/p>\n\n

Evolu\u010dn\u00ed d\u016fsledky<\/h2>\n\n

Existence dvouhlav\u00fdch had\u016f vyvol\u00e1v\u00e1 zaj\u00edmav\u00e9 evolu\u010dn\u00ed ot\u00e1zky. V\u011bdci spekuluj\u00ed, \u017ee dikcefalie m\u016f\u017ee b\u00fdt evolu\u010dn\u00ed nev\u00fdhodou, kter\u00e1 br\u00e1n\u00ed p\u0159e\u017eit\u00ed v divo\u010din\u011b. Dlouhov\u011bkost Pancha a Leftyho v zajet\u00ed v\u0161ak nazna\u010duje, \u017ee dikcefalie nemus\u00ed b\u00fdt v\u017edy rozsudkem smrti.<\/p>\n\n

Z\u00e1v\u011br:<\/h2>\n\n

N\u00e1vrat Pancha a Leftyho do ve\u0159ejn\u00e9 expozice je d\u016fkazem odolnosti t\u011bchto mimo\u0159\u00e1dn\u00fdch tvor\u016f. Jejich jedine\u010dn\u00fd stav nab\u00edz\u00ed cenn\u00e9 poznatky o slo\u017eitosti neurologie, anatomie a chov\u00e1n\u00ed zv\u00ed\u0159at. I kdy\u017e dv\u011b hlavy nemus\u00ed b\u00fdt v divo\u010din\u011b v\u017edy lep\u0161\u00ed ne\u017e jedna, Pancho a Lefty nad\u00e1le fascinuj\u00ed a vzd\u011bl\u00e1vaj\u00ed n\u00e1v\u0161t\u011bvn\u00edky v zoo Cameron Park.<\/p>","protected":false},"excerpt":{"rendered":"

Dvouhlav\u00fd had se vrac\u00ed do texask\u00e9 zoo Uzdraven\u00ed a n\u00e1vrat Po dvoulet\u00e9 pauze na zotaven\u00ed ze zran\u011bn\u00ed se Pancho a Lefty, vz\u00e1cn\u00fd dvouhlav\u00fd had, vr\u00e1tili do centra pozornosti v zoo…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1040],"tags":[309,19868,19869,2545,2173,947,5941],"class_list":["post-14847","post","type-post","status-publish","format-standard","hentry","category-animal-science","tag-animal-behavior","tag-two-headed-snake","tag-bicephaly","tag-snakes","tag-neurology","tag-animal-welfare","tag-reptiles"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/14847","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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/comments?post=14847"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/14847\/revisions"}],"predecessor-version":[{"id":14848,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/14847\/revisions\/14848"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=14847"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=14847"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=14847"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}