Binciken da Dr. Christopher Clark na Jami'ar Cornell ya gudanar ta amfani da bayanan soja ya nuna cewa sautunan whale suna tafiya dubban kilomita.Bugu da kari ga samar da bayanai game da samar da waƙa, bayanan sun ba masu bincike damar bin hanyar ƙaura na whales a duk lokacin "waƙa" (mating) kakar. Wani muhimmin abin da aka gano shi ne cewa whales, a cikin wani tsari da ake kira tasirin Lombard, suna daidaita waƙar su don ramawa don gurɓatarwar hayaniya. Bugu da ƙari, akwai shaidar cewa blue whales sun dakatar da samar da kira na sonar D-frequency sonar da zarar an kunna, duk da cewa saurin sautin (1<unk>8Hz) ya wuce talatin da biyu a kowane teku. A cikin shekaru goma da suka gabata, Clark ya ce yana da wuya a gano irin wannan ƙarar da ke haifar da ƙarar murya daga jirgin ruwa, wanda ya nuna cewa yana da wuya a gano ƙarar muryar da ke haifar da ƙarar murya.
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