Achava pamhene agorohwa pazuva uye achavhenekwa nomwedzi nenyeredzi dzose dzedenga, zvavakada vakazvishumira vakazvitevera uye vakabvunza kwazviri, uye vakazvinamata. Haangaunganidzwi kana kuvigwa, asi achafanana nomupfudze uri panyika.