Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: Blue whales sune rorquals (dangin Balaenopteridae), dangin da ya haɗa da whale humpback, fin whale, Bryde's whale, whale sei, da kuma minke whale. An yi imanin cewa dangin Balaenopteridae sun rabu da sauran iyalai na ƙananan Mysticeti tun a tsakiyar Oligocene (28 Ma da suka wuce). Tsarin blue whale ya rabu da sauran rorquals a lokacin Miocene, tsakanin 7.5 da 10.5 miliyan da suka wuce. Duk da haka, kwayar halitta tsakanin jinsunan sun ci gaba bayan wannan kwanan wata. Blue whale yana da mafi girman nau'in kwayoyin halitta na kowane whale, kuma mafi girma fiye da matsakaicin bambancin dabbobi masu shayarwa. Na farko da aka sani da whale mai launin shuɗi na zamani shine burbushin kwakwalwar da aka samo a kudancin Italiya, wanda ya kasance tsakanin shekaru 1.25 da 1.49 da suka wuce. An kiyasta cewa kifin whale ya kasance tsakanin mita 23.4 zuwa 26.1 (76.8 zuwa 85.6 ft) a rayuwa. Wannan binciken ya rushe wani tunanin da ya gabata cewa baleen whales da sauri sun kai girman su na zamani a 300,000 shekaru da suka gabata, tare da mafi yawan kwanan wata mai yiwuwa ya zama canji a hankali a kusa da shekaru miliyan 3.6, mai yiwuwa a baya. Ana rarraba whale mai launin shuɗi a matsayin ɗayan nau'ikan nau'ikan takwas a cikin jinsin Balaenoptera; wata hukuma ta sanya shi a cikin wani jinsin monotypic daban, Sibbaldus, amma wannan ba a karɓa a wani wuri ba. Nazarin jerin DNA ya nuna cewa whale mai launin shudi yana da kusancin phylogenetically ga whale na sei (Balaenoptera borealis) da whale na Bryde (Balaenoptera brydei) fiye da sauran nau'in Balaenoptera, kuma mafi kusa da whale na humpback (Megaptera) da whale na launin toka (Eschrichtius) fiye da whale na minke (Balaenoptera acutorostrata da Balaenoptera bonaerensis).Akwai akalla 11 da aka rubuta shari'o'in whale na whale-fin whale hybrid a cikin daji. Arnason da Gullberg sun kwatanta tazarar da ke tsakanin tsuntsaye masu launin shuɗi da tsuntsaye masu launin shuɗi kamar ta tsakanin mutum da gorilla. Masu bincike da ke aiki a Fiji sun yi imanin cewa sun dauki hoton wata kwayar halittar whale mai launin shuɗi mai launin shuɗi ciki har da ganowa ta hanyar nazarin DNA daga samfurin nama da aka samo a cikin...  Tambaya: Waɗanne kifi ne ake kira Blue whales?
Humpback whale, fin whale, Bryde's whale, whale na sei, da kuma minke whale