For a hatchling sea turtle, the answer is magnetoreception.

对于刚出壳的说，答案是磁感应。

This year is a real brake. It's magnetic. It is activated by a magnet.

今年开放的线路有真正的刹闸，是磁感应的，磁驱动的。

This amazing bird can learn to distinguish every letter of the alphabet, and many have the unique ability to find their way home over huge distances using megnetoreception.

这种神的鸟可以学会区分字母表中的每一个字母，而且许多鸟具有独特的能力，可以利用磁感应技远的地方找到回家的路。

The abbey had installed a wire - called a hearing loop or induction loop - which transmits sound via a magnetic signal to the telecoil in a hearing aid or cochlear implant.

修道院正是安装了一种助听线圈（也叫电磁感应线圈），这种线圈能够通过磁信号将声音传播给助听器或人工耳蜗。