Each year, pregnant female elephant seals take an approximately 240-day trek over 10,000 kilometers across the Eastern North Pacific Ocean before returning to their breeding beaches to give birth within five days of their arrival. Now, a study finds that this impressive navigation ability depends on an internal map sense, which functions much like a built-in GPS.
Click here for original story, Elephant seal’s map sense tells them when to head ‘home’
Source: ScienceDaily