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Study: Dogs Relieve Themselves In-Line With Earth's Magnetic Field
Urinating males have a slightly different preference to orient their body axis than urinating females (cf. Figure 3); this could be caused by leg lifting during urination in males. Indications of different directional tendencies depending on which leg (left or right) is lifted are currently under study.
Well, I can't say, "Your tax dollar at work", it's a Russian paper.
Very useful if one is lost in the woods, has lost his compass but acquired a dog.

Posted by: KBK 2014-01-05
http://www.rantburg.com/poparticle.php?ID=383048