<prompt> Pfupisa nyaya yacho: Hove yakashambira mazana emakiromita ichikwira rwizi rweAfrica pashure pokutsauka makore mamiriyoni 17 akapfuura iri kubatsira kujekesa nhambo inokosha mukushanduka-shanduka kwomunhu. Nyanzvi dzezvinhu zvipenyu zvekare dzakawana zvisaririra zvemafosili emadzitateguru ekare emawhale ane muromo wemazuva ano pakati peimwe yenzvimbo dzisina kugadzikana dzomugwenga reTurkana, Kenya. Kwakabvumira masayendisiti kunongedzera apo mugariro wenyika muEast Africa wakavamba kuchinja sezvo nyika yakapoteredza Great Rift Valley yakavamba kusimuka. Ichi chiumbwa chemakore ane mamiriyoni 17 chinoratidzwa mumufananidzo uri pamusoro apa ndechehove yakawanikwa kure nomunyika yeKenya uye chakaratidza nguva yakatanga kusimuka kwemakomo kumabvazuva kweAfrica kwakachinja zvikuru mamiriro okunze enharaunda yacho. Iyi yakanga iri nguva inokosha mukushanduka-shanduka kwevanhu kubva kumaprimates sezvo yakasika nzvimbo dzakavhurika dzakaoma dzakatungamirira madzitateguru edu akafanana nemakudo kuti afambe akamira kwenguva yokutanga. Vanoti kuti whale yacho ifambe kusvika kure kudaro ichipinda murwizi nzvimbo yacho inofanira kuva yakanga yakanyorova zvikuru, yakatwasuka zvikuru uye yaitongwa nemasango. Zvimwe ndechimwe chezvinhu zvinoshamisa zvikuru zvoupenyu hwomunhu - kuti vanhukadzi vane zera rakati vanorasikirwa nemano okubereka. Asi masayendisiti akawana kuti whales - rudzi rwakaparadzaniswa navanhu namakore anenge mamiriyoni 94 okuvapo - rwunotamburawo nokuguma kuenda kumwedzi. Kuwana kwacho kunogona kupa nhungamiro pamusoro pokuti nei menopause yakatanga pakutanga. Kushanduka-shanduka kwechimiro chinoderedza kubereka kwemarudzi akambovhiringidza nyanzvi dzoupenyu kwenguva refu uye pane pfungwa dzakawanda dzokuti nei chakavapo muvanhu. Iye zvino boka revatsvakurudzi vepaUniversity of Exeter neUniversity of York ringave rava kuziva chikonzero chokuguma kuenda kumwedzi - kana zvisiri pamapere. Vakawana kuti kunosunungura vakadzi vakura, vane ruzivo rwokuzviwanira kuti vatungamirire mhuri dzavo mukutsvaka zvokudya nokudaro kunowedzera mano eboka rose okuponesa. Zvakawanikwa izvi zvingabatsirawo kutsanangura kuti nei kupererwa nemwedzi kwakatanga muvanhu - zvaiita kuti vakadzi vakura vapewo vamwe ruzivo rwavo uye vabatsire kutarisira...  <response>: Chimwe chitunha chehove ine muromo chakawanikwa murenje riri kumadokero kweTurkana muKenya. Zvinhu zvakasara zvemhuka yemumvura zvakafukunurwa mamaira 459 kubva mugungwa. Inofungidzirwa kuti yakashambira ichikwira rwizi rwekare rweAnza pashure pokutsauka nenzira isiri iyo. Panguva iyoyo East Africa ingadai yakava yakati sandara, yakanyorova uye yakafukidzwa nesango. Masayendisiti anoti izvi zvinoratidza nzvimbo inokosha nzvimbo yacho isati yatanga kusimuka. Izvi zvakaita kuti mamiriro okunze aome uye nzvimbo yacho isanyanya kuva nemasango. Vatsvakurudzi vanoti zvakaita kuti zvikara zvaigara ikoko zvitange kufamba netsoka mbiri. 