<prompt> Pfupisa nyaya yacho: Nzira yatinofamba nayo yakasiyana nedzimwe kana tichienzanisa nehama dzedu dzepedyo dziri kurarama, tsoko. Asi masayendisiti haana chokwadi kuti mapfupa edu akavapo rini kuti pave nomusiyano uyu, uyo uri mumwe wemibvunzo inotungamirira kudzidza kushanduka kwevanhu nhasi. Zvino, vanzveri vanodavira kuti mhinduro yacho ingava iri munwe huru dzetsoka dzedu. Masayendisiti akagadzira nzira itsva yokuongorora mapfupa marefu, akadai sehallucal metatarsal - nhengo yetsoka inobatanidza chigunwe chikuru chetsoka - kuti adzidze kusiyana kwakaita tsoka dzevanhu nedzemonkey. Nzira yacho inoratidza misiyano yomuviri mumavara akasiyana-siyana, sezvinoratidzwa pamusoro apa. Chikwata chevasayendisiti chinotungamirirwa neUniversity of the Witwatersrand iri muJohannesburg, kuSouth Africa, chakabatanidza unyanzvi hwokuona zvinhu nemaziso, unyanzvi hwokugadzira zvinhu uye kuongorora nhamba kuti vawane nzira itsva yokuongorora maumbirwo emapfupa marefu. Vakaishandisa kunyora kusiyana kwetsoka pakati pevanhu nemakudo, zvokuti kusiyana kwacho kwakasimbiswa nomucheka wemivara. Iri basa richava nzvimbo yokutanga yezvidzidzo zvomunguva yemberi, izvo zvingatsvakurudza kuti kare munhau yedu yokushanduka-shanduka muenzaniso womunhu wazvino uno womuvakidzani wamapfupa muhallucal metatarsal - mugodhi wetsoka unobatanidza negumbo guru - wakabuda sei. Masayendisiti haana chokwadi kuti skeleton yedu yakashanduka rini kuti igadzire kufamba kwedu kwakasiyana nokumwe, asi vanodavira kuti mhinduro yacho ingava iri muzvigunwe zvedu zvikuru zvemakumbo, zvatinoshandisa muchikamu chokusimudzira chokufamba, kusiyana nemakudo ayo anochishandisa kukwira nokubata. Mufananidzo wacho uri pakombiyuta unoratidza zvaiitwa nevanhu paMarch of Progress. Chiremba wezvirwere zvetsoka Christopher Hunt anotaura kuti mamiriro ezvinhu etsoka dzedu anogona kuratidza zvinetso zvoutano. Iwo akaumbwa namapfupa makuru 26 namapfundo uye nzira iyo vanhu vanofamba nayo inotsamira panzira yavanofamba nayo pamusoro pomumwe nomumwe. Nemhaka yaikoku, tsoka dzakatwasuka dzinogona kuratidzira kukombama kwomuzongoza uye zvigunwe zvakapwanyika zvinogona kuratidzira hosha yemajoini gare gare muupenyu. Pulse inononoka inogona kuratidza kutenderera kwakashata uye, somuenzaniso, makumbo anodzungunyika - mugariro umo makumbo anodzungunyika mukati - anogona kuratidza zvisina kururama...  <response>: Vatsvakurudzi vepaUniversity of the Witwatersrand vakagadzira nzira itsva yokuongorora chimiro chemapfupa mutsoka. Vakachishandisa kuratidza misiyano yomuviri pakati petsoka dzavanhu nedzemonke nemavara akasiyana, izvo zvingatsanangura nzira yatinofamba nayo. Vanoti nzira yacho rimwe zuva inogona kuzivisa apo marangwanda edu akashanduka kutiita kuti tifambe nenzira yakasiana nehama dzedu dzapedyo dzapenyu. 