Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Hove dzebhuruu dzinonzi rorquals (mhuri yeBalaenopteridae), mhuri inosanganisira hove dzehumpback, fin whale, Bryde's whale, sei whale, uye minke whale. Mhuri ye Balaenopteridae inofungidzirwa kuti yakaparadzana nedzimwe mhuri dze suborder Mysticeti kare kare sepakati peOligocene (28 Ma apfuura). Mbeu yemabhuruu yakaparadzana nedzimwe rorquals munguva yeMiocene, pakati pamakore 7.5 nemamiriyoni 10.5 akapfuura. Zvisinei, kuyerera kwemajini pakati pemarudzi kunoratidzika kuva kwakapfuurira kupfuura musi iwoyo. Blue whale ine marudzi akasiyana-siyana emhuka kupfuura dzimwe hove dzinonzi baleen whale, uye ine marudzi akasiyana-siyana kupfuura dzimwe mhuka. Hove yebhuruu yazvino uno yakatanga kuzivikanwa nechokuita nokuumbwa kwayo inonzi partial skull fossil yakawanikwa kumaodzanyemba kweItaly, inonzi yakararama makore ari pakati pemamiriyoni 1,25 ne1,49 akapfuura. Hove iyi inofungidzirwa kuti yaiva yakareba mamita 23 kusvika ku26. Kuwana uku kunoputsa fungidziro yapfuura yokuti mapere akawana nokukurumidza ukuru hwawo hwazvino makore 300 000 akapfuura, nechiitiko chinobvira zvikuru chiri kuchinja zvishoma nezvishoma makore anenge mamiriyoni 3.6 akapfuura, zvichida kare. Blue whale inowanzogoverwa somumwe wemarudzi masere mu genus Balaenoptera; mumwe chiremera anoiisa mu genus monotypic yakaparadzana, Sibbaldus, asi izvi hazvigamuchirwi kune imwe nzvimbo. Kuongororwa kweDNA kunoratidza kuti blue whale iri phylogenetically iri pedyo ne sei whale (Balaenoptera borealis) uye Bryde's whale (Balaenoptera brydei) kupfuura kune mamwe marudzi eBalaenoptera, uye iri pedyo ne humpback whale (Megaptera) uye grey whale (Eschrichtius) kupfuura kune minke whales (Balaenoptera acutorostrata uye Balaenoptera bonaerensis).Pane zviitiko zvisingasviki gumi nerimwe zvakanyorwa zveblue whale-fin whale hybrid vanhu vakuru musango. Arnason naGullberg vanotsanangura kuti chinhambwe chiri pakati pebluefin nefin chinenge chakafanana nechiri pakati pomunhu negorilla. Vatsvakurudzi vanoshanda kuFiji vanodavira kuti vakaona mufananidzo wehove yebhuruu ine honye kusanganisira kuwanwa kwacho kupfurikidza nokuongorora DNA kubva mumuenzaniso wenyama wakawanikwa mu...  Mubvunzo: Ndeipi mimwe mimwe mimwe mhou inonzi mhou dzebhuruu?
Humpback whale, fin whale, Bryde's whale, sei whale, uye minke whale