Analysis of Body Position of Cattle Using Google Earth

The paper:<p><a href="http://www.pnas.org/content/105/36/13451.full.pdf&#38;title=Magnetic%20alignment%20in%20grazing%20and%20resting%20cattle%20and%20deer" rel="nofollow">http://www.pnas.org/content/105/36/13451.full.pdf&#38;title=...</a>