{"id":19937,"date":"2025-10-15T08:36:10","date_gmt":"2025-10-15T08:36:10","guid":{"rendered":"https:\/\/www.europesays.com\/ee\/19937\/"},"modified":"2025-10-15T08:36:10","modified_gmt":"2025-10-15T08:36:10","slug":"joehobusid-elas-euroopas-ka-jaaajal-ajalugu","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/ee\/19937\/","title":{"rendered":"J\u00f5ehobusid elas Euroopas ka j\u00e4\u00e4ajal | Ajalugu"},"content":{"rendered":"

Euroopas j\u00f5ehobusid ei ela, sest Euroopa kliima on liiga jahe. Tundub elementaarne. J\u00f5ehobusid elas Euroopas siis, kui kliima oli soojem.<\/p>\n

N\u00fc\u00fcd aga tuleb v\u00e4rskest teadust\u00f6\u00f6st v\u00e4lja, et tegelikult elas Euroopas j\u00f5ehobusid veel s\u00fcgaval j\u00e4\u00e4ajalgi, m\u00f5nik\u00fcmmend tuhat aastat tagasi.<\/p>\n

Patrick Arnold Saksamaalt Potsdami \u00dclikoolist ja ta kolleegid on m\u00e4\u00e4ranud L\u00f5una-Saksamaalt leitud j\u00f5ehobufossiilide vanust ja dateerinud need p\u00e4rinevaks vaid 47 kuni 31 tuhande aasta tagant.<\/p>\n

Seni on arvatud, et need suuresuulised ja paksunahalised loomad surid Euroopast v\u00e4lja umbes 115 tuhat aastat tagasi, mil m\u00f6\u00f6dunud j\u00e4\u00e4vaheaeg l\u00f5ppes ja viimatine j\u00e4\u00e4aeg algas.<\/p>\n

<\/p>\n

Teadlasedki on pidanud \u00fcsna enesestm\u00f5istetavaks, et rohket taimestikku ja k\u00fclmumata veekogusid vajavad j\u00f5ehobud on j\u00e4\u00e4aegadel Euroopast kadunud ja elanud siin vaid j\u00e4\u00e4vaheaegadel.<\/p>\n

Just sellele enesestm\u00f5istetavusele toetudes on t\u00f5lgendatud ka fossiiliadmeid. Leitud j\u00f5ehobufossiilid on automaatselt dateeritud hiljemalt viimase j\u00e4\u00e4vaheaja l\u00f5ppu ja mitte hilisemasse aega.<\/p>\n

Teisalt aga on Euroopa kunagiste j\u00f5ehobude DNA-andmed j\u00e4\u00e4nud seni teadlastele k\u00e4ttesaamatuks. Nii ei ole olnud isegi geneetilist t\u00f5endust, et Euroopa j\u00f5ehobud \u00fcldse t\u00e4naste Aafrika omadega l\u00e4hedalt suguluses olid.<\/p>\n

Arnold ja ta kaaslased uurisid n\u00fc\u00fcd l\u00e4bi 19 L\u00f5una-Saksamaalt leitud j\u00f5ehobufossiili ja eraldasid \u00fchest neist ka DNA-d.<\/p>\n

DNA-anal\u00fc\u00fcs v\u00f5imaldab neil ajakirjas Current Biology<\/a> ka kuulutada, et Euroopa j\u00f5ehobud olid t\u00f5epoolest Aafrika j\u00f5ehobude l\u00e4hedased sugulased.<\/p>\n

Fossiilide vanuse m\u00e4\u00e4ramiseks kasutasid teadlased radios\u00fcsinikumeetodit ja aminohappe-geokronoloogiat. Siit selguski t\u00f5ik, et euroj\u00f5ehobud j\u00f5udsid v\u00e4lja ka s\u00fcvaj\u00e4\u00e4aega.<\/p>\n

Hobude p\u00fcsimisele aitas kaasa asjaolu, et j\u00e4\u00e4aeg ei olnud kogu aeg ja k\u00f5ikjal k\u00f5ige kibedamalt karm, vaid esines ka kergeid soojenemisi ja v\u00e4ikesi mahedama kliimaga refuugiume, nagu n\u00e4iteks L\u00f5una-Saksamaal. K\u00fcllap leidus seal siis j\u00f5ehobudele piisavalt vaba vett ja rohelust.<\/p>\n

Uuritud DNA-st paistis aga v\u00e4lja j\u00e4\u00e4aegse j\u00f5ehobuasurkonna geneetiline \u00fcksluisus, miska tundub, et loomade arvukus oli v\u00e4ike ja nad olid teistest liigikaaslastest isoleeritud.<\/p>\n

Teadusuudised on Vikerraadios eetris esmasp\u00e4evast reedeni ca kell 8.35 ja laup\u00e4eval ca kell 8.25.<\/p>\n","protected":false},"excerpt":{"rendered":"Euroopas j\u00f5ehobusid ei ela, sest Euroopa kliima on liiga jahe. Tundub elementaarne. J\u00f5ehobusid elas Euroopas siis, kui kliima…\n","protected":false},"author":2,"featured_media":19938,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[80],"tags":[26,27,37,33,35,34,36,112,31,32,21,4328,11670,28,29,95,19,25,23,24,22,20,30,92,93,94],"class_list":{"0":"post-19937","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-maailm","8":"tag-breaking-news","9":"tag-breakingnews","10":"tag-ee","11":"tag-eesti","12":"tag-eesti-keel","13":"tag-estonia","14":"tag-estonian","15":"tag-euroopa","16":"tag-featured-news","17":"tag-featurednews","18":"tag-headlines","19":"tag-jaaaeg","20":"tag-joehobu","21":"tag-latest-news","22":"tag-latestnews","23":"tag-maailm","24":"tag-news","25":"tag-populaarseimad-lood","26":"tag-top-stories","27":"tag-topstories","28":"tag-uldised-uudised","29":"tag-uudised","30":"tag-viimased-uudised","31":"tag-world","32":"tag-world-news","33":"tag-worldnews"},"share_on_mastodon":{"url":"","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts\/19937","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/comments?post=19937"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts\/19937\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/media\/19938"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/media?parent=19937"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/categories?post=19937"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/tags?post=19937"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}