我们都知道,迁移的鸟类,尤其是鸽子具有磁性赋予它们的敏锐方向感,现在新的研究发现了鱼类中的类似的超级NAV力量。就像海洋的归鸽一样,鲑鱼和鳟鱼的归巢能力是众所周知的,但是他们非凡的归乡旅程的机制却不知道,但是新的研究表明,有些鱼的磁性细胞具有像小内置的指南针一样。
Working with rainbow trout, researchers from Ludwig Maximilians University Munich in Germany have identified specialized cells in these fish which have a concentration of magnetite near the membrane that imparts sensitivity to magnetic fields. Most of our reef fish are far removed from the migrating salmonids of temperate seas and freshwater river systems but it’s not inconceivable that our clownfish and angelfish could have a little magnetite in their cells too.
[Wired]