{"id":78120,"date":"2026-01-05T06:46:08","date_gmt":"2026-01-05T06:46:08","guid":{"rendered":"https:\/\/www.europesays.com\/ee\/78120\/"},"modified":"2026-01-05T06:46:08","modified_gmt":"2026-01-05T06:46:08","slug":"inimlasi-on-kahel-jalal-kainud-juba-seitse-miljonit-aastat-ajalugu","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/ee\/78120\/","title":{"rendered":"Inimlasi on kahel jalal k\u00e4inud juba seitse miljonit aastat | Ajalugu"},"content":{"rendered":"

Kahejalgsus on \u00fcks silmapaistev tunnus, mis inimesi imetajate seas erip\u00e4raseks teeb.<\/p>\n

N\u00fc\u00fcd on teadlased saanud kindlust juurde, et juba seitse miljonit aastat tagasi k\u00f5ndis Aafrikas kahel jalal ringi \u00fcks meie eellaskondlasi.<\/p>\n

Liiki nimega Sahelanthropus tchadensis tunnevad teadlased juba paark\u00fcmmend aastat, kuid paark\u00fcmmend aastat on v\u00e4ldanud ka tulised v\u00e4itlused selle \u00fcle, mitmel jalal see v\u00e4limuse poolest \u0161impansit meenutanud tegelane ikkagi maapinnal liikus.<\/p>\n

Scott Williams Ameerika \u00dchendriikidest New Yorgi \u00dclikoolist uurisid n\u00fc\u00fcd p\u00f5hjalikult muu hulgas sahelantropuse reieluud ja tuvastasid selle \u00fclaosas luust kergelt v\u00e4lja ulatuva eendi, mida esineb ainult kahejalgsetel inimlastel.<\/p>\n

Seda eendit nimetatakse p\u00f6\u00f6rlaks, selle k\u00fclge kinnituvad mitmed olulised lihased ja see on p\u00fcstise k\u00f5nni sooritamiseks \u00fclit\u00e4htis.<\/p>\n

<\/p>\n

Anal\u00fc\u00fcs n\u00e4itas, et sahelantropusel pidid olemas olema ka p\u00fcstik\u00f5ndi v\u00f5imaldavad tuharalihased. Ka oli tal reieluus kerge k\u00f5verus, mis samuti p\u00fcstik\u00f5nnile viitab.<\/p>\n

Sahelantropuse avastasid selle sajandi algusaastatel T\u0161aadist Djurabi k\u00f5rbest leitud fossiilide p\u00f5hjal Prantsuse paleontoloogid. Juba nemad oletasid kolju kuju p\u00f5hjal, et see liik hoidis pead asendis, mis viitab p\u00fcsti k\u00f5ndimisele.<\/p>\n

Hiljem p\u00e4evavalgele tulnud sahelantropuse k\u00fc\u00fcnarluu ja reieluu fossiilid on ka sellele oletusele toetust pakkunud, kuis j\u00e4tsid siiski ka kahtlemise v\u00f5imalusi alles.<\/p>\n

Williams ja kaasautorid kirjutavad ajakirjas Science Advances<\/a>, et sahelantropus veetis suure osa ajast k\u00fcll veel puuokstel turnides, kuid oli kohastunud ka maapinnal kahel jalal liikuma.<\/p>\n

Williams ja ta kolleegid k\u00f5rvutasid sahelantropuse k\u00fc\u00fcnar- ja reieluud samade luudega teistel liikidel, nii t\u00e4nap\u00e4eval elavail kui ka n\u00e4iteks australopitekusel, tuntud kahejalgsel inimlasel umbes kahe kuni nelja miljoni aasta tagant.<\/p>\n

Sahelantropuse reieluu oli k\u00fc\u00fcnarluuga v\u00f5rreldes suhteliselt pikk, mis on j\u00e4lle \u00fcks kahejalgsuse t\u00f5endus.<\/p>\n

Kahel jalal k\u00f5ndimine tundub siis t\u00f5esti olevat \u00fcks p\u00e4ris vana oskus.<\/p>\n

Pildil on Sahelanthropus tchadensis tehisaru t\u00f6\u00f6tlusena kunstniku joonisest.<\/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":"Kahejalgsus on \u00fcks silmapaistev tunnus, mis inimesi imetajate seas erip\u00e4raseks teeb. N\u00fc\u00fcd on teadlased saanud kindlust juurde, et…\n","protected":false},"author":2,"featured_media":78121,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_share_on_mastodon":"0"},"categories":[80],"tags":[26,27,37,33,35,34,36,31,32,21,39235,5613,14311,28,29,95,19,25,39233,23,24,39234,22,20,30,92,93,94],"class_list":["post-78120","post","type-post","status-publish","format-standard","has-post-thumbnail","category-maailm","tag-breaking-news","tag-breakingnews","tag-ee","tag-eesti","tag-eesti-keel","tag-estonia","tag-estonian","tag-featured-news","tag-featurednews","tag-headlines","tag-inimese-eellased","tag-inimese-polvnemine","tag-kahejalgsus","tag-latest-news","tag-latestnews","tag-maailm","tag-news","tag-populaarseimad-lood","tag-reieluu","tag-top-stories","tag-topstories","tag-tsaad","tag-uldised-uudised","tag-uudised","tag-viimased-uudised","tag-world","tag-world-news","tag-worldnews"],"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@ee\/115841150663967536","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts\/78120","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=78120"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts\/78120\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/media\/78121"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/media?parent=78120"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/categories?post=78120"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/tags?post=78120"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}