Istinct uye Inotakurika: Leak-proof yekuvhara chivharo chine-ruoko rumwe push-bhatani, kudzivirira huruva uye kuvuza. Bhodhoro remvura rine chivharo chekutakura chibatiso, chinokubvumira kuti utakure nyore nyore chero kupi zvako. Sarudzo yakakwana yekusimba, yekurovedza muviri, kumhanya, kukwira makomo, kuchovha bhasikoro, kumisasa, uye chero mimwe mitambo yekunze yekunze.