Dogs have anal glands on their rear ends that consist of oils that get launched as they poop. This aids dogs mark their territories. natural - unthinking; prompted by (or like by) intuition; "a cat's natural aversion to water"; "presenting to help you was as instinctive as respiration" Saint Bernards https://tysonriwkw.blogcudinti.com/35886372/5-simple-techniques-for-dog-anxiety-relief