{"id":5641,"date":"2024-07-05T14:38:00","date_gmt":"2024-07-05T12:38:00","guid":{"rendered":"https:\/\/terraplaza.com\/magazin\/?p=5641"},"modified":"2024-07-14T14:59:03","modified_gmt":"2024-07-14T12:59:03","slug":"a-medveallatkak-kalandjai-a-foldtorteneti-kozepkortol-napjainkig","status":"publish","type":"post","link":"https:\/\/terraplaza.com\/magazin\/hu\/melyviz-hu\/a-medveallatkak-kalandjai-a-foldtorteneti-kozepkortol-napjainkig\/5641\/","title":{"rendered":"A medve\u00e1llatk\u00e1k kalandjai a f\u00f6ldt\u00f6rt\u00e9neti k\u00f6z\u00e9pkort\u00f3l napjainkig"},"content":{"rendered":"\n<p><strong>A tudom\u00e1nyos ismeretterjeszt\u00e9st imit\u00e1l\u00f3 sajt\u00f3ban id\u0151r\u0151l id\u0151re felbukkannak a medve\u00e1llatk\u00e1k, t\u00f6bbnyire szenz\u00e1ci\u00f3hajh\u00e1sz szalagc\u00edmekkel: \u201eelpuszt\u00edthatatlanok, mindent t\u00fal\u00e9lnek\u201d \u00e9s hasonl\u00f3k. Annyi igaz ezekb\u0151l, hogy a medve\u00e1llatk\u00e1k val\u00f3ban k\u00fcl\u00f6nleges tulajdons\u00e1gokkal, hihetetlen ellen\u00e1ll\u00f3-k\u00e9pess\u00e9ggel rendelkeznek, de az\u00e9rt \u00e9let\u00fck, sz\u00e1rmaz\u00e1suk \u00e9s tal\u00e1n j\u00f6v\u0151j\u00fck sokkal izgalmasabb enn\u00e9l. Az al\u00e1bbiakban ezeket pr\u00f3b\u00e1lom meg \u00f6sszefoglalni.<\/strong><\/p>\n\n\n\n<p>A\u00a0medve\u00e1llatk\u00e1k, tudom\u00e1nyos nev\u00fck\u00f6n Tardigrada, \u00f6n\u00e1ll\u00f3 t\u00f6rzset k\u00e9peznek az \u00e1llatvil\u00e1g rendszerez\u00e9s\u00e9ben. A t\u00f6rzs a rendszertanban az \u00e1llatok orsz\u00e1g\u00e1nak legmagasabb els\u0151rend\u0171 kateg\u00f3ri\u00e1ja, s mint minden oszt\u00e1lyoz\u00e1s, mesters\u00e9ges, az emberi tud\u00e1s folyamatosan v\u00e1ltoz\u00f3 lenyomata. R\u00e9gen legf\u0151k\u00e9ppen alaktani b\u00e9lyegek alapj\u00e1n csoportos\u00edtott\u00e1k az \u00e1llatokat, m\u00edg az evol\u00faci\u00f3 felismer\u00e9s\u00e9vel azut\u00e1n a felt\u00e9telezett lesz\u00e1rmaz\u00e1s alapj\u00e1n val\u00f3 oszt\u00e1lyoz\u00e1s ker\u00fclt el\u0151t\u00e9rbe. Ma a legelfogadottabb n\u00e9zet szerint 31 \u00e1llatt\u00f6rzset k\u00fcl\u00f6nb\u00f6ztet\u00fcnk meg, amelyeket azut\u00e1n nagyobb, \u00e1tfog\u00f3bb csoportokba is igyekeznek beilleszteni. An\u00e9lk\u00fcl, hogy t\u00falzottan elmer\u00fclj\u00fcnk az oszt\u00e1lyoz\u00e1s rejtelmeiben, a lesz\u00e1rmaz\u00e1st figyelembe v\u00e9ve a medve\u00e1llatk\u00e1k a f\u00e9regl\u00e1b\u00faakkal (Onychophora) \u00e9s az \u00edzeltl\u00e1b\u00faakkal (Arthropoda) egy\u00fctt k\u00e9peznek egy nagyobb csoportot \u201ePanarthropoda\u201d n\u00e9ven, majd ehhez a kateg\u00f3ri\u00e1hoz a fon\u00e1lf\u00e9rgek rokons\u00e1g\u00e1t (\u00f6ves-, p\u00e1nc\u00e9los- \u00e9s farkosf\u00e9rgek t\u00f6rzseit) kapcsolva jutunk el az \u00fagynevezett \u201evedl\u0151 \u00e1llatokhoz\u201d (Ecdysozoa). R\u00e1juk egy\u00f6ntet\u0171en az jellemz\u0151, hogy h\u00e1romr\u00e9teg\u0171, kitint tartalmaz\u00f3 k\u00fcltakar\u00f3jukat rendszeresen levedlik, hogy n\u00f6vekedni tudjanak.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"482\" src=\"https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/02_Rendszer-1024x482.jpg\" alt=\"\" class=\"wp-image-5647\" srcset=\"https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/02_Rendszer-1024x482.jpg 1024w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/02_Rendszer-300x141.jpg 300w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/02_Rendszer-768x361.jpg 768w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/02_Rendszer-1536x722.jpg 1536w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/02_Rendszer-2048x963.jpg 2048w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/02_Rendszer-150x71.jpg 150w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/02_Rendszer-450x212.jpg 450w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/02_Rendszer-1200x564.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">A medve\u00e1llatk\u00e1k helye a vedl\u0151 \u00e1llatok rendszer\u00e9ben (Giribet \u00e9s Edgecombe 2020 nyom\u00e1n)<\/figcaption><\/figure>\n\n\n\n<p>Visszat\u00e9rve a medve\u00e1llatk\u00e1khoz, n\u00e9zz\u00fck teh\u00e1t, hogy melyek is azok a k\u00fcl\u00f6nleges tulajdons\u00e1gok, amelyek gyakran a sz\u00e9les k\u00f6z\u00f6ns\u00e9g figyelm\u00e9t is felkeltik? El\u0151sz\u00f6r is azt kell tudnunk, hogy pici, mikroszkopikus m\u00e9ret\u0171, a m\u00e1sf\u00e9l millim\u00e9tert is csak n\u00e9ha el\u00e9r\u0151 m\u00e9ret\u0171 \u00e1llatk\u00e1kr\u00f3l van sz\u00f3, melyekkel a mindennapi ember nagyon ritk\u00e1n tal\u00e1lkozik. Pedig ott vannak minden\u00fctt a k\u00f6rnyezet\u00fcnkben: a talajban, az avarban a korhad\u00f3 leveleken, a h\u00e1ztet\u0151k mohalepte cserepein, az es\u0151v\u00edzgy\u0171jt\u0151 tart\u00e1lyokban, \u00e9s olyan extr\u00e9m \u00e9lett\u00e9rben is, mint a sivatagi homokd\u0171n\u00e9k vagy a tengeri \u00fcled\u00e9kek. Ez ut\u00f3bbiak m\u00e1r utalnak arra, hogy mennyire ellen\u00e1ll\u00f3ak ak\u00e1r a kedvez\u0151tlen k\u00f6rnyezeti felt\u00e9telekkel szemben. R\u00f6viden \u00f6sszefoglalva: kib\u00edrj\u00e1k a plusz 151 fokot (n\u00e9h\u00e1ny percig) , a m\u00ednusz 20 fokot ak\u00e1r 30 \u00e9vig, de a m\u00ednusz 200-at is n\u00e9h\u00e1ny napig, s\u0151t az abszol\u00fat nulla (m\u00ednusz 273) fokot is n\u00e9h\u00e1ny percig. Ellen\u00e1llnak a l\u00e9g\u00fcres t\u00e9rnek (v\u00e1kuumnak) \u00e9s a norm\u00e1l l\u00e9gnyom\u00e1s 1200-szoros\u00e1nak is; egyes fajok m\u00e9g a 6000 atmoszf\u00e9r\u00e1nak is, ami a hatszorosa a legm\u00e9lyebb tengerfen\u00e9ken, a 11 km m\u00e9ly Mariana-\u00e1rokban uralkod\u00f3 nyom\u00e1snak. Ugyanakkor 6000 m\u00e9ter magasan vagy a f\u00f6ldben 4600 m\u00e9ter m\u00e9lyen is tal\u00e1ltak \u00e9l\u0151 medve\u00e1llatk\u00e1kat. Sz\u00e1razs\u00e1g eset\u00e9n nyugalmi \u00e1llapotba ker\u00fclnek, melyet ak\u00e1r 10 \u00e9vig is k\u00e9pesek fenntartani; de l\u00e9tezik egy megfigyel\u00e9s kisz\u00e1radt, 120 \u00e9ves moh\u00e1ban tal\u00e1lt \u00e9s m\u00e9g mozg\u00f3 medve\u00e1llatk\u00e1r\u00f3l is. Test\u00fcknek a norm\u00e1l k\u00f6r\u00fclm\u00e9nyek k\u00f6zt 85%-\u00e1t alkot\u00f3 v\u00edznek (embern\u00e9l ez 50-60%) a t\u00f6bb mint 80%-\u00e1t k\u00e9pesek elvesz\u00edteni, azaz 3%-ra cs\u00f6kkenteni. Ellen\u00e1llnak a radioakt\u00edv sug\u00e1rz\u00e1snak is: m\u00e1s \u00e1llatokn\u00e1l t\u00f6bb mint ezerszer er\u0151sebb sug\u00e1rz\u00e1st k\u00e9pesek elviselni, ez kb. 5000 Gray (a Gray az ioniz\u00e1l\u00f3 sug\u00e1rz\u00e1sok, gamma- vagy r\u00f6ntgensugarak nemzetk\u00f6zi m\u00e9rt\u00e9kegys\u00e9ge). \u00d6sszehasonl\u00edt\u00e1sul: embern\u00e9l 5 Gray 14 napon bel\u00fcl hal\u00e1lt okoz. A hirosimai atombomba epicentruma (a ledob\u00e1s helye) k\u00f6zel\u00e9ben a sug\u00e1rz\u00e1s ereje el\u00e9rte a 100 Gray-t\u2026<\/p>\n\n\n\n<p>Tal\u00e1n a legelgondolkoztat\u00f3bb k\u00eds\u00e9rlet az volt, amikor medve\u00e1llatk\u00e1kat 2007-ben f\u00f6ldk\u00f6r\u00fcli p\u00e1ly\u00e1ra k\u00fcldt\u00e9k az eur\u00f3pai BIOPAN asztrobiol\u00f3giai m\u0171hold seg\u00edts\u00e9g\u00e9vel. A csod\u00e1latos \u00e1llatk\u00e1k, el\u0151z\u0151leg dehidrat\u00e1lva (kisz\u00e1r\u00edtva) 10 napig t\u00fal\u00e9ltek a vil\u00e1g\u0171r l\u00e9g\u00fcres ter\u00e9ben, a Nap er\u0151s ultraibolya sug\u00e1rz\u00e1sa alatt. A visszahozott medve\u00e1llatk\u00e1k 68%-a v\u00edzbe t\u00e9ve 30 percen bel\u00fcl \u00e9letre kelt, s b\u00e1r ut\u00e1na viszonylag hamar elpusztultak, de k\u00f6zben \u00e9letk\u00e9pes embri\u00f3kat produk\u00e1ltak.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/03_Medveallatka_b-1024x768.jpg\" alt=\"\" class=\"wp-image-5648\" srcset=\"https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/03_Medveallatka_b-1024x768.jpg 1024w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/03_Medveallatka_b-300x225.jpg 300w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/03_Medveallatka_b-768x576.jpg 768w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/03_Medveallatka_b-1536x1152.jpg 1536w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/03_Medveallatka_b-2048x1536.jpg 2048w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/03_Medveallatka_b-150x113.jpg 150w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/03_Medveallatka_b-450x338.jpg 450w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/03_Medveallatka_b-1200x900.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Medve\u00e1llatka mikroszk\u00f3pos k\u00e9pe. J\u00f3l l\u00e1that\u00f3 a 4 p\u00e1r l\u00e1b a v\u00e9g\u00e9n a karmokkal. Az \u00e1llat feje jobb oldalt van.<\/figcaption><\/figure>\n\n\n\n<p>Ezzel eljutottunk a medve\u00e1llatk\u00e1k szaporod\u00e1si m\u00f3djaihoz. A ma ismert k\u00f6r\u00fclbel\u00fcl 1200 faj \u00e1ltal\u00e1ban k\u00e9tivar\u00fa, teh\u00e1t vannak h\u00edmek \u00e9s n\u0151st\u00e9nyek is. Ivarmirigyeik a b\u00e9lcsatorn\u00e1juk mellett helyezkednek el, \u00e9s egy kis ny\u00edl\u00e1ssal ny\u00edlnak a v\u00e9gb\u00e9lny\u00edl\u00e1s k\u00f6zel\u00e9ben (h\u00edmek) vagy kloak\u00e1t alkotva k\u00f6zvetlen\u00fcl a v\u00e9gb\u00e9lbe (n\u0151st\u00e9nyek). A n\u00e9h\u00e1ny sz\u0171znemz\u00e9ssel szaporod\u00f3 mellett a t\u00f6bbs\u00e9gn\u00e9l a k\u00fcls\u0151 megterm\u00e9keny\u00edt\u00e9st a h\u00edm \u00e9s a n\u0151st\u00e9ny r\u00f6vid udvarl\u00e1sa \u00e9s vedl\u00e9s el\u0151tti tal\u00e1lkoz\u00e1sa el\u0151zi meg. A medve\u00e1llatk\u00e1k mind toj\u00e1srak\u00f3ak (pet\u00e9t raknak), amelyek a n\u0151st\u00e9ny vedl\u00e9s\u00e9ig a k\u00fcltakar\u00f3j\u00e1n bel\u00fcl helyezkednek el. A lerakott toj\u00e1sok k\u00e9t h\u00e9t alatt kifejl\u0151dnek, \u00e9s az ut\u00f3dok m\u00e1r feln\u0151tt \u00e9let\u00fck \u00f6sszes sejtj\u00e9vel rendelkeznek. A n\u00f6veked\u00e9s ezut\u00e1n a sejtek megnagyobbod\u00e1s\u00e1val t\u00f6rt\u00e9nik, nem oszt\u00f3d\u00e1ssal; a medve\u00e1llatk\u00e1k \u00e1ltal\u00e1ban 12-szer vedlenek \u00e9let\u00fck sor\u00e1n.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"865\" src=\"https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/04_Medveallatka-1024x865.jpg\" alt=\"\" class=\"wp-image-5654\" srcset=\"https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/04_Medveallatka-1024x865.jpg 1024w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/04_Medveallatka-300x254.jpg 300w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/04_Medveallatka-768x649.jpg 768w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/04_Medveallatka-1536x1298.jpg 1536w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/04_Medveallatka-2048x1731.jpg 2048w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/04_Medveallatka-150x127.jpg 150w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/04_Medveallatka-450x380.jpg 450w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/04_Medveallatka-1200x1014.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Medve\u00e1llatka fej\u00e9nek fant\u00e1ziak\u00e9pe. Az orm\u00e1nyon a t\u00e1pl\u00e1l\u00e9kszerz\u00e9shez haszn\u00e1lt szuronyok l\u00e1that\u00f3k.<\/figcaption><\/figure>\n\n\n\n<p>A medve\u00e1llatk\u00e1k t\u00e1pl\u00e1lkoz\u00e1sa rendk\u00edv\u00fcl v\u00e1ltozatos, fajonk\u00e9nt m\u00e1s \u00e9s m\u00e1s lehet. Vannak kiz\u00e1r\u00f3lag n\u00f6v\u00e9nyev\u0151k, bakt\u00e9riumokat fogyaszt\u00f3k, \u00e9s vannak kifejezett ragadoz\u00f3k, s\u0151t kannib\u00e1lok is, p\u00e9ld\u00e1ul a szinte minden\u00fctt (Magyarorsz\u00e1gon is) el\u0151fordul\u00f3, m\u00e1r 1840-ben le\u00edrt <em>Milnesium tardigradum<\/em>. \u00c1llkapcsuk, r\u00e1g\u00f3ik, tapogat\u00f3ik nincsenek, sz\u00e1jszerv\u00fck orm\u00e1nyszer\u0171 k\u00e9pz\u0151dm\u00e9nyb\u0151l \u00e1ll, amelyben sz\u00far\u00e1sra, sz\u00edv\u00e1sra alkalmas szuronyok vannak. Ezekkel sz\u00farja meg a t\u00e1pl\u00e1l\u00e9kot, \u00e9s sz\u00edvja ki bel\u0151le a foly\u00e9kony t\u00e1panyagot. L\u00e9gz\u0151- vagy kering\u00e9si rendszer\u00fck nincs a medve\u00e1llatk\u00e1knak, mindent, az oxig\u00e9nt is a kisz\u00edvott t\u00e1panyagb\u00f3l szerzik. K\u00e9pesek nagyon hossz\u00fa ideig \u00e9hezni is, egyes adatok szerint el\u0151fordulhat, hogy ak\u00e1r 30 \u00e9vig nem esznek, nem isznak. Ilyenkor \u00fagynevezett kriptobiotikus \u00e1llapotba ker\u00fclnek, amely legink\u00e1bb a tetszhal\u00e1lhoz hasonl\u00edt: nem mozognak, nem l\u00e9legeznek, hanem szinte betokoz\u00f3dnak, \u00e9s \u00edgy \u00e1llnak ellent szinte minden k\u00fcls\u0151 behat\u00e1snak. Ha ezeket a rejtett \u00e1llapotokat nem sz\u00e1m\u00edtjuk, akkor egy medve\u00e1llatka akt\u00edvan mintegy 3-4 h\u00f3napig, egyes fajok legfeljebb 2 \u00e9vig \u00e9lnek.<\/p>\n\n\n\n<p>A\u00a0rendk\u00edv\u00fcli ellen\u00e1ll\u00f3-k\u00e9pess\u00e9g tette lehet\u0151v\u00e9, hogy a medve\u00e1llatk\u00e1k bolyg\u00f3nkon az utols\u00f3, \u00f6t\u00f6dik nagy kihal\u00e1si esem\u00e9nyt t\u00fal\u00e9lt\u00e9k. A fosszilis leletek (k\u00f6v\u00fcletek) szerint a Kr\u00e9ta kor \u00f3ta, amely 145-t\u0151l \u00e9s 66 milli\u00f3 \u00e9vvel ezel\u0151ttig tartott, v\u00e1ltozatlanul fennmaradtak. A Kr\u00e9ta kor a f\u00f6ldt\u00f6rt\u00e9neti k\u00f6z\u00e9pkor, a Mezozoikum utols\u00f3 id\u0151szaka volt, amely az akkori \u00e1llatfajok t\u00f6meges kihal\u00e1s\u00e1val fejez\u0151d\u00f6tt be. Ekkor t\u0171ntek el F\u00f6ld\u00fcnkr\u0151l a dinoszauruszok (kiv\u00e9ve egyes t\u00fal\u00e9l\u0151iket, amelyekb\u0151l a madarak alakultak ki), a rep\u00fcl\u0151 \u00e9s tengeri \u0151sh\u00fcll\u0151k, \u00e9s sz\u00e1mos m\u00e1s \u00e1llat- \u00e9s n\u00f6v\u00e9nycsoport. A kihal\u00e1st k\u00f6zismerten a Mexik\u00f3i-\u00f6b\u00f6lbe becsap\u00f3d\u00f3 hatalmas aszteroida okozta, amelynek 180 km \u00e1tm\u00e9r\u0151j\u0171, k\u00f6r alak\u00fa kr\u00e1ternyoma ma is felismerhet\u0151 a Yucat\u00e1n-f\u00e9lszigeten. A becsap\u00f3d\u00e1s a k\u00f6zvetlen puszt\u00edt\u00e1s ut\u00e1n kl\u00edmav\u00e1ltoz\u00e1st okozott, amelyet csak kev\u00e9s \u00e9l\u0151l\u00e9ny, \u00edgy a medve\u00e1llatk\u00e1k \u00e9ltek t\u00fal.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"574\" src=\"https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/05_Hallucigenia-fortis-1024x574.jpg\" alt=\"\" class=\"wp-image-5655\" srcset=\"https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/05_Hallucigenia-fortis-1024x574.jpg 1024w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/05_Hallucigenia-fortis-300x168.jpg 300w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/05_Hallucigenia-fortis-768x431.jpg 768w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/05_Hallucigenia-fortis-1536x862.jpg 1536w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/05_Hallucigenia-fortis-2048x1149.jpg 2048w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/05_Hallucigenia-fortis-150x84.jpg 150w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/05_Hallucigenia-fortis-450x252.jpg 450w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/05_Hallucigenia-fortis-1200x673.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Hallucigenia fortis fant\u00e1ziak\u00e9pe \u00a9 McCall 2019<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"590\" src=\"https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/06_Aysheaia_pedunculata-1024x590.jpg\" alt=\"\" class=\"wp-image-5656\" srcset=\"https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/06_Aysheaia_pedunculata-1024x590.jpg 1024w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/06_Aysheaia_pedunculata-300x173.jpg 300w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/06_Aysheaia_pedunculata-768x443.jpg 768w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/06_Aysheaia_pedunculata-1536x885.jpg 1536w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/06_Aysheaia_pedunculata-2048x1180.jpg 2048w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/06_Aysheaia_pedunculata-150x86.jpg 150w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/06_Aysheaia_pedunculata-450x259.jpg 450w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/06_Aysheaia_pedunculata-1200x691.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Aysheaia pedunculata fossz\u00edlia \u00c9szak-Amerika British Columbia \u00e1llam\u00e1b\u00f3l \u00a9 Pates et al. 2017<\/figcaption><\/figure>\n\n\n\n<p>A legid\u0151sebb medve\u00e1llatka-maradv\u00e1ny mintegy 90 milli\u00f3 \u00e9ves, amelyet az Egyes\u00fclt \u00c1llamok keleti partvid\u00e9k\u00e9n, a New Jersey-i borosty\u00e1nban tal\u00e1ltak. Ugyanabba a <em>Milnesium<\/em> nemzets\u00e9gbe osztott\u00e1k be, amelynek ma 50 \u00e9l\u0151 faja van. A nemzets\u00e9get Louis Michel Doy\u00e8re (1811\u20131863) nevezte el 1840-ben Henri Milne-Edwards (1800\u20131885) francia term\u00e9szettud\u00f3sr\u00f3l, teh\u00e1t nincs k\u00f6ze Alan Alexander Milne-hez (1882\u20131956), a Micimack\u00f3s mesek\u00f6nyvek angol szerz\u0151j\u00e9hez. A New Jersey-i medve\u00e1llatka b\u00e1r a legid\u0151sebb, de nem ezt tal\u00e1lt\u00e1k meg els\u0151nek: el\u0151sz\u00f6r 1964-ben kanadai borosty\u00e1nb\u00f3l \u00edrtak le egy m\u00e1sik fajt, amelyet 72 milli\u00f3 \u00e9vesre becs\u00fclnek. Kor\u00e1bbi Kr\u00e9ta kort megel\u0151z\u0151 leletek teh\u00e1t nincsenek, de ez persze nem jelenti azt, hogy kor\u00e1bban nem \u00e9lhettek a medve\u00e1llatk\u00e1khoz hasonl\u00f3 \u0151sl\u00e9nyek.<\/p>\n\n\n\n<p>A f\u00f6ldt\u00f6rt\u00e9neti Mezozoikum Kambrium id\u0151szaka id\u0151sz\u00e1m\u00edt\u00e1sunk el\u0151tt 538 milli\u00f3 \u00e9vt\u0151l 485 milli\u00f3 \u00e9vig tartott, \u00e9s ebb\u0151l a korb\u00f3l is van n\u00e9h\u00e1ny k\u00fcl\u00f6nleges, szinte sehov\u00e1 nem besorolhat\u00f3 \u00e1llati k\u00f6v\u00fclet. Az id\u0151szak a nev\u00e9t Wales eredeti nev\u00e9r\u0151l (Cambria) kapta, ahol nagy mennyis\u00e9g\u0171 megk\u00f6vesedett \u0151smaradv\u00e1nyt tal\u00e1ltak a 19. sz\u00e1zad els\u0151 fel\u00e9ben. A Kambrium elej\u00e9n a fajok gazdags\u00e1ga hihetetlen sebess\u00e9ggel n\u00f6vekedett, f\u0151leg tengeri \u00edzeltl\u00e1b\u00faak \u00e9s m\u00e1s soksejt\u0171 \u00e1llatok form\u00e1j\u00e1ban. Ekkor jelent meg sz\u00e1mos mai \u00e1llatt\u00f6rzs \u0151se, \u00e9s sok olyan, m\u00e1ra kihalt \u00e9l\u0151l\u00e9ny is nagy sz\u00e1mban volt, mint p\u00e9ld\u00e1ul a h\u00e1romkar\u00e9j\u00fa \u0151sr\u00e1kok (Trilobita) csoportja. Az \u0151smaradv\u00e1nyok egy r\u00e9sze elk\u00e9peszt\u0151 formagazdags\u00e1got mutat, ez\u00e9rt ezt az id\u0151szakot \u201ekambriumi robban\u00e1snak\u201d is nevezik. Az \u00e9szak-amerikai Szikl\u00e1s-hegys\u00e9g kanadai r\u00e9sz\u00e9n fekv\u0151, mintegy 508 milli\u00f3 \u00e9ves Burgess-pal\u00e1ban tal\u00e1lt k\u00fcl\u00f6nleges \u0151sl\u00e9nyek egyike a Hallucigenia, amelyet sok\u00e1ig nem tudtak sehov\u00e1 sem elhelyezni. V\u00e9g\u00fcl a m\u00e1r eml\u00edtett f\u00e9regl\u00e1b\u00faakat (Onychophora) megel\u0151z\u0151, kihalt lebenyesl\u00e1b\u00faak (Lobopodia) k\u00f6z\u00e9 sorolt\u00e1k. Az Aysheaia nev\u0171 m\u00e1sik k\u00f6v\u00fclet m\u00e1r jobban hasonl\u00edt a mai f\u00e9regl\u00e1b\u00faakhoz (m\u00e1sik nev\u00fck\u00f6n \u0151sl\u00e9gcs\u00f6vesekhez), de a feje ennek is m\u00e1s, sem \u00e1llkapcsa, sem cs\u00e1pjai nincsenek.<br><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"680\" src=\"https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/07_Iharos-Gyula-1024x680.jpg\" alt=\"\" class=\"wp-image-5657\" srcset=\"https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/07_Iharos-Gyula-1024x680.jpg 1024w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/07_Iharos-Gyula-300x199.jpg 300w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/07_Iharos-Gyula-768x510.jpg 768w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/07_Iharos-Gyula-1536x1021.jpg 1536w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/07_Iharos-Gyula-2048x1361.jpg 2048w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/07_Iharos-Gyula-150x100.jpg 150w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/07_Iharos-Gyula-450x299.jpg 450w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/07_Iharos-Gyula-1200x797.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Iharos Gyula (1910\u20132002), a medve\u00e1llatk\u00e1k magyar kutat\u00f3ja.<\/figcaption><\/figure>\n\n\n\n<p>A\u00a0medve\u00e1llatk\u00e1k kutat\u00e1s\u00e1nak jelent\u0151s magyar vonatkoz\u00e1sai is vannak. Az E\u00f6tv\u00f6s Lor\u00e1nd Tudom\u00e1nyegyetemet megel\u0151z\u0151, h\u00e1bor\u00fa el\u0151tti P\u00e1zm\u00e1ny P\u00e9ter Tudom\u00e1nyegyetem neves, Dudich Endre (1895\u20131971) professzor \u00e1ltal vezetett\u00a0 \u00e1llattani kutat\u00f3csoportj\u00e1ba tartozott Iharos Gyula (1910\u20132002), aki doktori disszert\u00e1ci\u00f3j\u00e1t 1939-ben a medve\u00e1llatk\u00e1kb\u00f3l \u00edrta. \u00datt\u00f6r\u0151 munk\u00e1ss\u00e1g\u00e1ban \u00f6sszesen 47 tudom\u00e1nyra \u00faj medve\u00e1llatkafajt \u00edrt le, 54 tudom\u00e1nyos k\u00f6zlem\u00e9nye jelent meg. K\u00f6z\u00fcl\u00fck kiemelked\u0151 a Magyarorsz\u00e1g faun\u00e1j\u00e1t t\u00e1rgyal\u00f3 sorozatban 1956-ban megjelent munka. Iharos Gyula fajle\u00edr\u00e1sai a vil\u00e1g minden t\u00e1j\u00e1n, korabeli exped\u00edci\u00f3k gy\u0171jt\u00e9seib\u0151l sz\u00e1rmaznak. \u0150 maga sohasem j\u00e1rt a tr\u00f3pusokon, az egyetem ut\u00e1n premontrei szerzetes lett, felvette az Alfonz atya nevet, \u00e9s Balatonfenyvesen \u00e9lt, ahol templomot is \u00e9p\u00edtett. Mikroszk\u00f3pos kutat\u00e1sait ott sem hagyta abba, \u00e9s gy\u0171jtem\u00e9nye v\u00e9g\u00fcl a medve\u00e1llatk\u00e1k kutat\u00e1s\u00e1t folytat\u00f3 Vargha B\u00e9la k\u00f6zrem\u0171k\u00f6d\u00e9s\u00e9vel a Magyar Term\u00e9szettudom\u00e1nyi M\u00fazeumba ker\u00fclt.\u00a0<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"723\" height=\"1024\" src=\"https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/10_Faunafuzet-723x1024.jpg\" alt=\"\" class=\"wp-image-5660\" srcset=\"https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/10_Faunafuzet-723x1024.jpg 723w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/10_Faunafuzet-212x300.jpg 212w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/10_Faunafuzet-768x1088.jpg 768w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/10_Faunafuzet-1084x1536.jpg 1084w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/10_Faunafuzet-1445x2048.jpg 1445w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/10_Faunafuzet-150x213.jpg 150w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/10_Faunafuzet-450x638.jpg 450w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/10_Faunafuzet-1200x1700.jpg 1200w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/10_Faunafuzet.jpg 1667w\" sizes=\"(max-width: 723px) 100vw, 723px\" \/><figcaption class=\"wp-element-caption\">Iharos Gyula medve\u00e1llatka-monogr\u00e1fi\u00e1j\u00e1nak bor\u00edt\u00f3ja<\/figcaption><\/figure>\n\n\n\n<p>Egy m\u00e1sik, \u00e9rdekes magyar vonatkoz\u00e1s a jap\u00e1n Esaki Teiso (1899\u20131957) nev\u00e9hez f\u0171z\u0151dik. Teiso a toki\u00f3i Cs\u00e1sz\u00e1ri Egyetemen v\u00e9gzett entomol\u00f3gusk\u00e9nt (rovarkutat\u00f3k\u00e9nt), \u00e9s tanulm\u00e1nyait meger\u0151s\u00edtve 1924\u20131928 k\u00f6z\u00f6tt eur\u00f3pai k\u00f6r\u00faton j\u00e1rt. Hihetetlen nyelvtehets\u00e9ge r\u00e9v\u00e9n megtanult n\u00e9met\u00fcl, angolul, olaszul \u00e9s eszperant\u00f3ul, \u00e9s miut\u00e1n t\u00f6bbsz\u00f6r megl\u00e1togatta poloskakutat\u00f3 koll\u00e9g\u00e1j\u00e1t, Horv\u00e1th G\u00e9z\u00e1t Budapesten a Term\u00e9szettudom\u00e1nyi M\u00fazeumban, \u00edgy megtanult magyarul is! Leveleket, m\u00e9g tudom\u00e1nyos k\u00f6zlem\u00e9nyt is \u00edrt magyarul. A medve\u00e1llatk\u00e1khoz \u00fagy k\u00f6t\u0151dik, hogy r\u00f3la mint neves jap\u00e1n zool\u00f3gusr\u00f3l nevezett el sv\u00e1jci koll\u00e9g\u00e1ja, Gilbert Rahm, 1937-ben egy k\u00fcl\u00f6nleges fajt. A <em>Thermozobium esakii<\/em> medve\u00e1llatk\u00e1nak egyetlen p\u00e9ld\u00e1nya volt ismert, amelyet Jap\u00e1n d\u00e9li sziget\u00e9n, Kj\u00fas\u00fan gy\u0171jt\u00f6ttek egy 40\u201360 \u00b0C fokos h\u0151forr\u00e1sb\u00f3l. A faj r\u00e9sz\u00e9re k\u00fcl\u00f6n oszt\u00e1lyt \u00e1ll\u00edtottak fel a medve\u00e1llatk\u00e1k rendszer\u00e9ben, de a helyzete mindm\u00e1ig bizonytalan. Sajnos a t\u00edpusp\u00e9ld\u00e1ny elveszett, \u00e9s az eredeti lel\u0151helyet, a h\u0151forr\u00e1st f\u00f6ldreng\u00e9s puszt\u00edtotta el, \u00edgy kev\u00e9s az es\u00e9ly arra, hogy ennek a k\u00fcl\u00f6nleges fajnak a mibenl\u00e9t\u00e9t valaha is meg\u00e1llap\u00edts\u00e1k.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"656\" height=\"1024\" src=\"https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/08_Iharos-prep-656x1024.jpg\" alt=\"\" class=\"wp-image-5658\" srcset=\"https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/08_Iharos-prep-656x1024.jpg 656w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/08_Iharos-prep-192x300.jpg 192w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/08_Iharos-prep-768x1199.jpg 768w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/08_Iharos-prep-984x1536.jpg 984w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/08_Iharos-prep-1312x2048.jpg 1312w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/08_Iharos-prep-150x234.jpg 150w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/08_Iharos-prep-450x703.jpg 450w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/08_Iharos-prep-1200x1873.jpg 1200w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/08_Iharos-prep.jpg 1513w\" sizes=\"(max-width: 656px) 100vw, 656px\" \/><figcaption class=\"wp-element-caption\">Iharos Gyula mikroszk\u00f3pos prepar\u00e1tumai a Magyar Term\u00e9szettudom\u00e1nyi M\u00fazeumban<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"962\" height=\"1024\" src=\"https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/09_Medveallatka-962x1024.jpg\" alt=\"\" class=\"wp-image-5659\" srcset=\"https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/09_Medveallatka-962x1024.jpg 962w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/09_Medveallatka-282x300.jpg 282w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/09_Medveallatka-768x818.jpg 768w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/09_Medveallatka-1442x1536.jpg 1442w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/09_Medveallatka-150x160.jpg 150w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/09_Medveallatka-450x479.jpg 450w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/09_Medveallatka-1200x1278.jpg 1200w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/09_Medveallatka.jpg 1664w\" sizes=\"(max-width: 962px) 100vw, 962px\" \/><figcaption class=\"wp-element-caption\">Iharos Gyula egyik tudom\u00e1nyra \u00faj faja a mikroszk\u00f3pos prepar\u00e1tumban<\/figcaption><\/figure>\n\n\n\n<p>A\u00a0medve\u00e1llatk\u00e1k t\u00f6rzs\u00e9nek rendszerez\u00e9s\u00e9r\u0151l m\u00e9g annyit illik tudni, hogy k\u00e9t hat\u00e1rozott oszt\u00e1lyuk van, az egyikbe 700 fajt, a m\u00e1sikba kb. 500-at sorolnak. A k\u00fcl\u00f6nbs\u00e9g k\u00f6z\u00f6tt\u00fck apr\u00f3 alaktani jellegzetess\u00e9gekb\u0151l \u00e1ll: a kitolhat\u00f3 sz\u00e1jszurony helyzet\u00e9b\u0151l, az ivarcsatorna ny\u00edl\u00e1s\u00e1nak elhelyezked\u00e9s\u00e9b\u0151l, az \u00e1ltal\u00e1nosan 4 p\u00e1r l\u00e1b v\u00e9g\u00e9n l\u00e9v\u0151 karmok sz\u00e1m\u00e1b\u00f3l. Annak ellen\u00e9re, hogy sok szempontb\u00f3l figyelemre \u00e9rdemes \u00e1llatokr\u00f3l van sz\u00f3, kutat\u00e1suk m\u00e9g sz\u00e1mos felfedezni val\u00f3t rejthet. Alig ismert p\u00e9ld\u00e1ul a genetikai \u00e1llom\u00e1nyuk, pedig a t\u00fal\u00e9l\u00e9si k\u00e9pess\u00e9g\u00fck m\u00f6g\u00f6tt megb\u00fav\u00f3 titok nyilv\u00e1n a DNS-\u00fckben van. Siker\u00fcket, amellyel \u00e9vmilli\u00f3kon \u00e1t k\u00e9pesek voltak v\u00e1ltozatlan form\u00e1ban fennmaradni, \u00e9rdemes tanulm\u00e1nyozni.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"716\" src=\"https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/12_Echiniscus_insularis-1024x716.jpg\" alt=\"\" class=\"wp-image-5662\" srcset=\"https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/12_Echiniscus_insularis-1024x716.jpg 1024w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/12_Echiniscus_insularis-300x210.jpg 300w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/12_Echiniscus_insularis-768x537.jpg 768w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/12_Echiniscus_insularis-1536x1074.jpg 1536w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/12_Echiniscus_insularis-2048x1432.jpg 2048w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/12_Echiniscus_insularis-150x105.jpg 150w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/12_Echiniscus_insularis-450x315.jpg 450w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/12_Echiniscus_insularis-1200x839.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Echiniscus insularis (Heterotardigrada) p\u00e1szt\u00e1z\u00f3 elektronmikroszk\u00f3pos k\u00e9pe \u00a9 Kiosya et al. 2021<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"895\" src=\"https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/11_Milnesium-tardigradum-1024x895.jpg\" alt=\"\" class=\"wp-image-5661\" srcset=\"https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/11_Milnesium-tardigradum-1024x895.jpg 1024w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/11_Milnesium-tardigradum-300x262.jpg 300w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/11_Milnesium-tardigradum-768x671.jpg 768w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/11_Milnesium-tardigradum-1536x1342.jpg 1536w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/11_Milnesium-tardigradum-2048x1790.jpg 2048w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/11_Milnesium-tardigradum-150x131.jpg 150w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/11_Milnesium-tardigradum-450x393.jpg 450w, https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/11_Milnesium-tardigradum-1200x1049.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Milnesium tardigradum (Eutardigrada) p\u00e1szt\u00e1z\u00f3 elektronmikroszk\u00f3pos k\u00e9pe \u00a9 Schokraie et al. 2012<\/figcaption><\/figure>\n\n\n\n<p><strong>Felhaszn\u00e1lt irodalom:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Giribet G &amp; Edgecombe G (2020): The invertebrate tree of life. \u2013 Princeton Univ. Press, Princeton \u2013 Oxford, 589 pp.<\/li>\n\n\n\n<li>Kiosya Y, Von\u010dina K &amp; G\u0105siorek P (2021): Echiniscidae in the Mascarenes: the wonders of Mauritius. \u2013 Evolutionary Systematics 5(1): 93-120.<\/li>\n\n\n\n<li>McCall CRA (2019): A hypothetical reconstruction of Hallucigenia. \u2013 PeerJ Preprints<\/li>\n\n\n\n<li>Pates S, Daley AC &amp; Ortega-Hern\u00e1ndez J (2017): Aysheaia prolata from the Utah Wheeler Formation (Drumian, Cambrian) is a frontal appendage of the radiodontan Stanleycaris. \u2013 Acta Palaeontologica Polonica 62(3): 619-625.<\/li>\n\n\n\n<li>Schokraie E, Warnken U, Hotz-Wagenblatt A, Grohme MA, Hengherr S, et al. (2012): Comparative proteome analysis of Milnesium tardigradum in early embryonic state versus adults in active and anhydrobiotic state. \u2013 PLoS One 7(9): e45682.<\/li>\n\n\n\n<li>Vargha B (2016): Vizsg\u00e1latok Milnesium tardigradum fajnak hat\u00e1rozott magyarorsz\u00e1gi medve\u00e1llatka (Tardigrada) egyedeken. \u2013 e-Acta Naturalia Pannonica 10: 115\u2013125.<\/li>\n<\/ul>\n\n\n\n<p><br><\/p>\n\n\n\n<p><br><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A tudom\u00e1nyos ismeretterjeszt\u00e9st imit\u00e1l\u00f3 sajt\u00f3ban id\u0151r\u0151l id\u0151re felbukkannak a medve\u00e1llatk\u00e1k, t\u00f6bbnyire szenz\u00e1ci\u00f3hajh\u00e1sz szalagc\u00edmekkel: \u201eelpuszt\u00edthatatlanok, mindent t\u00fal\u00e9lnek\u201d \u00e9s hasonl\u00f3k. Annyi igaz ezekb\u0151l, hogy a medve\u00e1llatk\u00e1k val\u00f3ban k\u00fcl\u00f6nleges tulajdons\u00e1gokkal, hihetetlen ellen\u00e1ll\u00f3-k\u00e9pess\u00e9ggel rendelkeznek, de az\u00e9rt \u00e9let\u00fck, sz\u00e1rmaz\u00e1suk \u00e9s tal\u00e1n j\u00f6v\u0151j\u00fck sokkal izgalmasabb enn\u00e9l. Az al\u00e1bbiakban ezeket pr\u00f3b\u00e1lom meg \u00f6sszefoglalni. A\u00a0medve\u00e1llatk\u00e1k, tudom\u00e1nyos nev\u00fck\u00f6n Tardigrada, \u00f6n\u00e1ll\u00f3 t\u00f6rzset k\u00e9peznek az \u00e1llatvil\u00e1g<\/p>\n","protected":false},"author":16,"featured_media":5644,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[144,1077],"tags":[1073,153,1075],"class_list":{"0":"post-5641","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-melyviz-hu","8":"category-panarthropoda","9":"tag-medveallatka","10":"tag-melyviz-hu","11":"tag-tardigrada"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>A medve\u00e1llatk\u00e1k kalandjai a f\u00f6ldt\u00f6rt\u00e9neti k\u00f6z\u00e9pkort\u00f3l napjainkig &#8211; TerraPlaza magazin<\/title>\n<meta name=\"description\" content=\"A tudom\u00e1nyos ismeretterjeszt\u00e9st imit\u00e1l\u00f3 sajt\u00f3ban id\u0151r\u0151l id\u0151re felbukkannak a medve\u00e1llatk\u00e1k, t\u00f6bbnyire szenz\u00e1ci\u00f3hajh\u00e1sz szalagc\u00edmekkel: \u201eelpuszt\u00edthatatlanok, mindent t\u00fal\u00e9lnek\u201d \u00e9s hasonl\u00f3k.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/terraplaza.com\/magazin\/hu\/melyviz-hu\/a-medveallatkak-kalandjai-a-foldtorteneti-kozepkortol-napjainkig\/5641\/\" \/>\n<meta property=\"og:locale\" content=\"hu_HU\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A medve\u00e1llatk\u00e1k kalandjai a f\u00f6ldt\u00f6rt\u00e9neti k\u00f6z\u00e9pkort\u00f3l napjainkig &#8211; TerraPlaza magazin\" \/>\n<meta property=\"og:description\" content=\"A tudom\u00e1nyos ismeretterjeszt\u00e9st imit\u00e1l\u00f3 sajt\u00f3ban id\u0151r\u0151l id\u0151re felbukkannak a medve\u00e1llatk\u00e1k, t\u00f6bbnyire szenz\u00e1ci\u00f3hajh\u00e1sz szalagc\u00edmekkel: \u201eelpuszt\u00edthatatlanok, mindent t\u00fal\u00e9lnek\u201d \u00e9s hasonl\u00f3k.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/terraplaza.com\/magazin\/hu\/melyviz-hu\/a-medveallatkak-kalandjai-a-foldtorteneti-kozepkortol-napjainkig\/5641\/\" \/>\n<meta property=\"og:site_name\" content=\"TerraPlaza magazin\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/terraplaza\" \/>\n<meta property=\"article:published_time\" content=\"2024-07-05T12:38:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-07-14T12:59:03+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/terraplaza.com\/magazin\/wp-content\/uploads\/2024\/07\/01_Medveallatka.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2362\" \/>\n\t<meta property=\"og:image:height\" content=\"1325\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"dr. 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