Imisebenzi enomdla inokwenziwa kwinkunkuma engafunekiyo. Umzekelo, uJames Duran-Webb wenza imizobo emangalisayo evela kwinkunkuma, ehambisa ulwandle elunxwemeni lweZiqithi zasePhilippines. Indalo engaqhelekanga ijongeka iyinyani. Kubonakala ngathi imizobo eyenziwe ngomthi ilungele ukwahlukana nendawo, njengamaHillocks ngokwenene.
Umthombo: