Scientists discovered that salmon use "geomagnetic imprinting" to find their way home.
The ocean generates its own magnetic field, which peaks everty 12.5 hours along with the rising tides.
Sea currents create electric currents through a process called motional induction.
Spiny lobsters have an amazing navigational sense called magnetic position fixing.
Have you ever wondered why the magnetic fields change places?
Did you know that years and years ago the magnetic poles switched places?