<prompt> Pfupisa nyaya yacho: Vanhu vapakuvamba vaigara muAfrica anenge mamiriyoni maviri amakore akapfuura vakauya mumativi akasiyana-siyana uye hukuru, sezvakangoita vanhu nhasi, kunodaro fundo itsva. Vanzveri vakawana kuti mamwe marudzi akanga ari mapfupi - akareba mamita asingasviki mashanu - nepo mamwe angadai akakura kusvika pakukwirira kwemamita anenge matanhatu. Fundo yacho ndiyo yokutanga mumakore 20 kuenzanisa ukuru hwomuviri hwavanhu vakararama pakati pemamirioni 1,5 na 2,5 apfuura. Vanhu vapakuvamba vaigara muAfrica anenge mamiriyoni maviri amakore akapfuura vakauya mumativi akasiyana-siyana uye hukuru, sezvakangoita vanhu nhasi, kunodaro fundo itsva. Mufananidzo uyu unoratidza skeleton ye Nariokotome Boy Homo ergaster Mhuka nhatu dzinozivikanwa kuti dzaifamba-famba muAfrica panguva iyi: Homo habilis, Homo rudolfensis uye Homo ergaster. Muongorori Dr Jay Stock, weDhipatimendi reArchaeology neAnthropology yeCambridge University, akati: Kana mumwe munhu akakubvunza kuti vanhu vemazuva ano vakareba mamita matanhatu uye vanorema makirogiramu 70 here? ungati hongu, vamwe vakadaro, asi vanhu vakawanda havasi, uye zvatiri kutanga kuratidza ndezvokuti kusiyana uku kwakaitika kare kare mukushanduka-shanduka kwevanhu. Zvokudya uye zvinhu zvomunzvimbomo zvomunzvimbomo sezvingabvira zvakatamba rutivi mukuita kuti vamwe vanhu vapakuvamba vave vakuru kupfuura vamwe. Nyanzvi dzinodavirawo kuti kusangana pabonde kusiyana kwakasimba muchitarisiko pakati pevanhurume nevanhukadzi, zvakadai soukuru kungave kwakabatanidzwawo. Zvisinei, anenge mapoka ose akadzidzwa... anosanganisira vanhu vaduku uye vakuru uye kuongorora bonde zvichibva pazvinhu zvakasarudzika uye zvisingaverengeki zvinenge zvasara mumusoro wevanhu vekare kunenge kusingabviri, vanodaro muchidzidzo chacho. Chimwe chinhu chinobvira, chinofungidzirwa kuva chisingabviri, ndechokuti kwaiva nemarudzi akawanda aiva emhuri yevanhu inonzi Homo ayo akanga achisiyana pakuoneka. Kuyerwa kwezvicherwa zvakawanikwa muKenya, Tanzania, South Africa, neGeorgia kumabvazuva kweEurope, kwakaratidza misiyano mikuru yomunharaunda muhukuru hwavanhu vapakuvamba mukati meNguva yeIce yekupedzisira. Mamwe mapoka, akadai seaya anogara muOlduvai, Tanzania, aiva avhareji yemamita 4,8 chete, nepo avo vanobva munharaunda yeKoobi Fora muKenya...  <response>: Nyanzvi dzakagadzira nzira yokuverenga urefu uye uremu hwomuviri hwevanhu vachishandisa zvidimbu zviduku zvezvisaririra, zvimwe zvacho zvakanga zvisina kukura kudarika zvigunwe zvetsoka. Vatsvakurudzi vakawana munhu wokutanga aibva pa 4ft 8 inches kusvika pa 6ft. Zvinonzi madzitateguru edu akabva muAfrica nemhaka yokukura makumbo marefu. Asi kuongorora uku kunoratidza kuti pangava nechimwe chinhu chaikonzera izvi. Nyanzvi dzinotaurawo kuti mamiriro ezvinhu omunzvimbo yacho angava anokonzera kusiyana-siyana kwechimiro chacho. Izvi zvinoratidza kuti ukuru hwomuviri hahusi chinhu chisingachinji chinoratidza rudzi rwomunhu. Ndicho chidzidzo chokutanga mumakore 20 kuenzanisa ukuru hwomuviri hwevanhu vakararama pakati pemamiriyoni 1,5 ne2,5 apfuura. 