Magnetic fields pass invisibly through the entire body so researchers don't know exactly where these magnetite particles or cryptochromes would be attached to particular cells and so mistakes are made all the time.
磁场无形地穿过整个身体,所以研究人员不知道这些磁铁矿颗粒或隐色体会准确地附着在特定的细胞上,所以导致犯错。