Nimravidi, \u010dasto ozna\u010dovan\u00ed jako \u201efale\u0161n\u00ed \u0161avlozub\u00ed tyg\u0159i\u201c, byli skupinou maso\u017erav\u00fdch savc\u016f, kte\u0159\u00ed \u017eili p\u0159ed 40,4 a\u017e 7,2 miliony let. Navzdory sv\u00e9mu jm\u00e9nu nebyli nimravidi \u00fazce p\u0159\u00edbuzn\u00ed se skute\u010dn\u00fdmi \u0161avlozub\u00fdmi \u0161elmami, jako byl Smilodon. M\u011bli v\u0161ak prodlou\u017een\u00e9 \u0161pi\u010d\u00e1ky, kter\u00e9 jim d\u00e1valy podobn\u00fd vzhled.<\/p>\n\n
Ned\u00e1vn\u00fd v\u00fdzkum odhalil, \u017ee nimravidi pat\u0159ili mezi nejv\u00edce sv\u00e1rliv\u00e9 tvory sv\u00e9 doby. Fos\u00edlie objeven\u00e9 v Badlands White River v Severn\u00ed Dakot\u011b ukazuj\u00ed jasn\u00e9 d\u016fkazy o boj\u00edch mezi t\u011bmito zv\u00ed\u0159aty. Paleontolog Clint Boyd a jeho kolegov\u00e9 identifikovali nejm\u00e9n\u011b \u0161est exempl\u00e1\u0159\u016f nimravid\u016f, kter\u00e9 nesou zn\u00e1mky boj\u016f s jin\u00fdmi \u010dleny sv\u00e9ho druhu.<\/p>\n\n
Fosiln\u00ed z\u00e1znam poskytuje d\u011bsiv\u00fd pohled do n\u00e1siln\u00fdch st\u0159et\u016f mezi nimravady. Mnoho exempl\u00e1\u0159\u016f zkouman\u00fdch Boydem a jeho t\u00fdmem vykazuje bodn\u00e9 r\u00e1ny od prodlou\u017een\u00fdch \u0161pi\u010d\u00e1k\u016f jin\u00fdch nimravid\u016f. V n\u011bkter\u00fdch p\u0159\u00edpadech jsou vpichy tak z\u00e1va\u017en\u00e9, \u017ee pror\u00e1\u017eej\u00ed kost.<\/p>\n\n
P\u0159\u00edtomnost stop po kousnut\u00ed na lebk\u00e1ch nimravid\u016f zpochyb\u0148uje tradi\u010dn\u00ed pohled, \u017ee zv\u00ed\u0159ata se \u0161avlovit\u00fdmi zuby se vyh\u00fdbala pou\u017e\u00edv\u00e1n\u00ed sv\u00fdch dlouh\u00fdch, tenk\u00fdch \u0161pi\u010d\u00e1k\u016f k p\u016fsoben\u00ed na tvrd\u00e9 struktury, jako jsou kosti. D\u016fkazy v\u0161ak nazna\u010duj\u00ed, \u017ee nimravidi byli ochotni pou\u017e\u00edvat sv\u00e9 \u0161avlovit\u00e9 zuby v pln\u00e9 m\u00ed\u0159e v konfliktech s jin\u00fdmi pred\u00e1tory.<\/p>\n\n
Souhv\u011bzd\u00ed vpich\u016f a \u0161kr\u00e1banc\u016f na lebk\u00e1ch nimravid\u016f poskytuje informace o tom, jak tato zv\u00ed\u0159ata na sebe \u00fato\u010dila. Boydova anal\u00fdza nazna\u010duje, \u017ee v\u011bt\u0161ina \u00fatok\u016f p\u0159ich\u00e1zela zezadu, p\u0159i\u010dem\u017e spodn\u00ed \u0161pi\u010d\u00e1ky m\u00ed\u0159ily na zadn\u00ed \u010d\u00e1st lebky a horn\u00ed \u0161pi\u010d\u00e1ky m\u00ed\u0159ily na o\u010di a okoln\u00ed oblasti. To nazna\u010duje, \u017ee nimravidi pou\u017e\u00edvali sv\u00e9 prodlou\u017een\u00e9 \u0161pi\u010d\u00e1ky k oslepen\u00ed sv\u00fdch soupe\u0159\u016f.<\/p>\n\n
Vysok\u00e1 frekvence bojov\u00fdch zran\u011bn\u00ed mezi nimravady vyvol\u00e1v\u00e1 ot\u00e1zky ohledn\u011b jejich chov\u00e1n\u00ed a agresivity. Boyd se domn\u00edv\u00e1, \u017ee nimravidi byli v\u016f\u010di sob\u011b mimo\u0159\u00e1dn\u011b podr\u00e1\u017ed\u011bn\u00ed, co\u017e vedlo k \u010dast\u00fdm konflikt\u016fm. D\u016fvody t\u00e9to podr\u00e1\u017ed\u011bnosti z\u016fst\u00e1vaj\u00ed nezn\u00e1m\u00e9, ale mohlo to souviset s konkurenc\u00ed o \u00fazem\u00ed nebo zdroje.<\/p>\n\n
Objev bojov\u00fdch zran\u011bn\u00ed u nimravid\u016f otev\u00edr\u00e1 nov\u00e9 mo\u017enosti v\u00fdzkumu jejich chov\u00e1n\u00ed. Paleontologov\u00e9 nyn\u00ed zkoumaj\u00ed mo\u017enost, \u017ee nimravidi prov\u00e1d\u011bli z\u00edv\u00e1n\u00ed jako hrozbu, aby uk\u00e1zali sv\u00e9 \u0161pi\u010d\u00e1ky a zastra\u0161ili sv\u00e9 konkurenty. Dal\u0161\u00ed v\u00fdzkumn\u00e9 ot\u00e1zky se zam\u011b\u0159uj\u00ed na soci\u00e1ln\u00ed dynamiku skupin nimravid\u016f a faktory, kter\u00e9 mohly p\u0159isp\u011bt k jejich agresivn\u00edmu chov\u00e1n\u00ed.<\/p>\n\n
Studium bojov\u00fdch zran\u011bn\u00ed nimravid\u016f zd\u016fraz\u0148uje v\u00fdznam anal\u00fdzy fosili\u00ed pro pochopen\u00ed chov\u00e1n\u00ed vyhynul\u00fdch zv\u00ed\u0159at. Pe\u010dliv\u00fdm zkoum\u00e1n\u00edm fyzick\u00fdch d\u016fkaz\u016f zanechan\u00fdch v kostech a lebk\u00e1ch mohou paleontologov\u00e9 z\u00edskat cenn\u00e9 poznatky o \u017eivot\u011b a interakc\u00edch t\u011bchto d\u00e1vno ztracen\u00fdch pred\u00e1tor\u016f.<\/p>\n\n
Objev bojov\u00fdch zran\u011bn\u00ed u nimravid\u016f je p\u0159ipom\u00ednkou, \u017ee chov\u00e1n\u00ed prav\u011bk\u00fdch maso\u017eravc\u016f bylo mnohem slo\u017eit\u011bj\u0161\u00ed, ne\u017e se d\u0159\u00edve myslelo. Zpochyb\u0148uje tradi\u010dn\u00ed p\u0159edpoklady o pou\u017e\u00edv\u00e1n\u00ed \u0161avlovit\u00fdch zub\u016f a vyvol\u00e1v\u00e1 nov\u00e9 ot\u00e1zky o soci\u00e1ln\u00ed dynamice a agresivn\u00edm chov\u00e1n\u00ed t\u011bchto vyhynul\u00fdch zv\u00ed\u0159at. Jak paleontologov\u00e9 pokra\u010duj\u00ed ve studiu fosiln\u00edho z\u00e1znamu, m\u016f\u017eeme o\u010dek\u00e1vat, \u017ee odhal\u00edme je\u0161t\u011b v\u00edce fascinuj\u00edc\u00edch detail\u016f o \u017eivot\u011b t\u011bchto tvor\u016f, kte\u0159\u00ed kdysi ob\u00fdvali Zemi.<\/p>","protected":false},"excerpt":{"rendered":"
Pseudo\u0161avlozub\u00e9 \u0161elmy v Badlands v Dakot\u011b Nimravidi: Fale\u0161n\u00ed \u0161avlozub\u00ed tyg\u0159i Nimravidi, \u010dasto ozna\u010dovan\u00ed jako \u201efale\u0161n\u00ed \u0161avlozub\u00ed tyg\u0159i\u201c, byli skupinou maso\u017erav\u00fdch savc\u016f, kte\u0159\u00ed \u017eili p\u0159ed 40,4 a\u017e 7,2 miliony let. Navzdory…<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[138],"tags":[4009,309,4007,4005,4002,137,4003,4004,4006,4008],"class_list":["post-1870","post","type-post","status-publish","format-standard","hentry","category-paleontology","tag-fossil-analysis","tag-animal-behavior","tag-dakota-badlands","tag-carnivores","tag-nimravids","tag-paleontology","tag-pseudo-sabercats","tag-sabertooth","tag-white-river-badlands","tag-combat-injuries"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/1870","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=1870"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/1870\/revisions"}],"predecessor-version":[{"id":1871,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/1870\/revisions\/1871"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=1870"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=1870"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=1870"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}