So, taking a dog's natural tail position into consideration is a crucial first step in interpreting that individual dog's tail language accurately. (wideopenpets.com)
A fluffy tail that is held high over the dog's back is an aggressive tail positioning signal. (dogcare.dailypuppy.com)
Strack catalogued a range of tail positions that seemed to give clues about a cat's mood and intentions. (newscientist.com)