Side note: Two weeks ago, a friend told me that dogs turn their bodies to poop in a north-south axis. I couldn't believe it and couldn't believe that I hadn't noticed before. So this was a timely read.

The article begged the question for me: Does the biocompass come into play for humans? Does anyone know of any examples of cultural/tribal traditions/oral histories that suggest that humans can improve their wellbeing by being aware of Earth's magnetic fields for various tasks?