Kungani izinja zikwazi ukuhogela kahle kangaka?
Izinja zinezinzwa zokuhogela ezingaba yizigidi ezingu - 300 uma ziqhathaniswa nezigidi ezingu - 6 zabantu. Umuzwa wazo wokuhogela ungcono ngokuphindwe izikhathi ezingu-40 kunowomuntu. Zibuye zibe nama-neophilic okusho ukuthi ziyakhangwa amaphunga amasha futhi athakazelisayo. Futhi zinekhono lokubona ukuthi iphunga liphuma kumaphi amakhala.