cause thats how doggies do it!!
4 legs animals do it..not only dogs...and its the only position they have: doggy, horsy, elefanty, and the list goes on....:biggrin1:
It may was first used by a male with no outdoor life...just a couple of domestic dogs as pet near by..sooo boring... why not 'liony' much more majestic and goes well with the noble position too...