鸽子肝脏中的超顺磁巨噬细胞在阴天条件下引导导航

Homing pigeon navigation relies on superparamagnetic macrophages under overcast conditions Clivia Lisowski1*, Michael Quetting2, Daniela Klaus1, Lisa Lazarevski1, Lea Seep3, Maximilian Germer1, Jian Li1, Inge Müller2, Daniel Zuniga2, Wolfgang Fiedler2, Dina K. N. Dechmann2, Kasper Thorup2,4, Jan Hasenauer3, Lars Fester5, Stefanie Kuerten5, Michael Farle6, Ulf Wiedwald6, Martin Wikelski2,7*†, Christian Kurts1,8*† Birds use a variety of navigational strategies, including the geomagnetic field, especially when other cues are not available, such as under overcast or nocturnal conditions. Magnetite particles in the beak, cryptochromes in the eye, cellular ion- channel alterations, and changes in the vestibular system have been proposed to explain magnetoreception, but the exact mechanisms remain debated. …