Earth Magnetic monopole field with boundary layer profile, (B) which seems to be different for each place on earth and a navigation map for animals like pigeons, butterlies and turtles.
Animals like Pigeons and sea Turtles seem to be able to identify these specific curves (B) for different locations by the small amount of permalloy alike metals already found in their bodies, to explain the extraordinary qualities of animal orientation.
see also: http://vixra.org/pdf/1103.0024v7.pdf
and: https://www.flickr.com/photos/93308747@N05/albums/72157633287892650