Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Tafiya: Masu bincike suna amfani da na'urar da ake kira hydrophone (wanda aka yi amfani da shi a yaƙin dā don bin diddigin jiragen ruwa) don su san ainihin wurin da kifin whale yake ji. Hanyoyin da suke amfani da su suna sa su iya sanin nisan da sautin ya yi a cikin teku. Binciken da Dr. Christopher Clark na Jami'ar Cornell ya gudanar ta amfani da bayanan soja ya nuna cewa sautin kifin whale yana tafiya dubban kilomita. Ban da ba da bayani game da yadda ake yin waƙa, bayanan sun taimaka wa masu bincike su san yadda kifin whale suke ƙaura a lokacin da suke "raira waƙa". Wani muhimmin abin da aka gano shi ne cewa kifayen whale, a wani tsari da ake kira Lombard effect, suna daidaita waƙarsu don su daidaita hayaniyar hayaniya. Bugu da ƙari, akwai shaidar cewa blue whales daina samar da foraging D kira da zarar wani tsakiyar-mita sonar aka kunna, ko da yake sonar mita kewayon (1<unk>8 kHz) nisa ya wuce su sauti samar da kewayon (25<unk>100 Hz).Kafin gabatarwar mutum amo samar, Clark ya ce amo iya tafiya dama daga wannan gefen teku zuwa wancan, yarda da talatin shekara da haihuwa ra'ayi zargin manyan sikelin shipping. Binciken nasa ya nuna cewa hayaniyar da ke kewaye da jiragen ruwa tana ninkawa kowace shekara goma. Wannan yana da tasirin rage zangon da za'a iya jin sautin whale. Masu kula da muhalli sun ji tsoron cewa irin wannan aikin jirgin ruwa yana sa dabbobi su sha wahala sosai kuma yana sa ya yi musu wuya su sami abokiyar aure. A cikin shekaru goma da suka shige, an ƙirƙiro dabaru masu amfani da na'urori masu sarrafa kansu, kamar su sarrafa sigina, da yin amfani da bayanai, da kuma fasahohin koyon na'ura don a gano da kuma rarraba muryoyin kifin whale.  Tambaya: Nawa ne yawan amo ya karu a cikin shekaru goma?
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