Ngokusekelwe kulo mbhalo okhuluma ngoshaka abakhulu, kungani oshaka abakhulu bekwazi ukuphila emanzini anosawoti namanzi angenasawoti?
Context:Ushaka wenkunzi (Carcharhinus leucas), owaziwa nangokuthi usaka waseZambezi (ngokungajwayelekile i-zambi) e-Afrika kanye nosaka weLake Nicaragua eNicaragua, uhlobo lukashaka we-requiem ovame ukutholakala emhlabeni wonke emanzini afudumele, angajulile ngasogwini nasemifuleni. Yaziwa ngokuba nolaka, futhi ikhona ikakhulukazi ezindaweni ezifudumele, ezingajulile ezinamanzi anosawoti namanzi ahlanzekile kubandakanya imifula kanye (ngokujwayelekile) nemifula ephansi.  Izinhlanzi ezinjengoshaka ziyi - euryhaline futhi zingaphila emanzini anosawoti namanzi angenasawoti. Ayaziwa ukuthi ahamba amabanga amade emifuleni, futhi ayaziwa ukuthi ahamba phezulu eMfuleni iMississippi kuze kufike e-Alton, e-Illinois, cishe amakhilomitha ayi-1,100 (700 mi) ukusuka olwandle, kodwa kunezingxoxo ezimbalwa zamanzi amasha nabantu eziqoshiwe. Cishe izinhlanzi ezinkulu ezinjengo-bull shark yizo ezibangela iningi lokuhlaselwa izinhlanzi ezinjengo-shark ngasogwini, kuhlanganise nezenzakalo eziningi zokulunywa izinhlanzi ezinjengo-shark ezibangelwa ezinye izinhlobo zezinhlanzi.  Ngokungafani noshaka basemfuleni bohlobo lweGlyphis, oshaka abakhulu abawona oshaka bamanzi ahlanzekile, naphezu kokukwazi kwabo ukusinda ezindaweni zokuhlala emanzini ahlanzekile.
Izinhlanzi okuthiwa ama - bull shark zingaphila emanzini anosawoti namanzi ahlanzekile ngoba ziyi - euryhaline.