Interesting article in the Telegraph about how Cows automatically point to the north.
Dr Sabine Begall and colleagues from the University of Duisburg-Essen looked at thousands of images of cattle on Google Earth in Britain, Ireland, India and the USA. They also studied 3,000 deer in the Czech Republic. The deer tended to face north when resting or grazing.
Wow. And to know that the cow in my backyard can be used as a very handy compass :). This comment on Slashdot summarizes it all:
Having an edible compass would come in handy if you get lost.