Dogs perform many behaviours that we and our friends think are adorable. They also perform some quite unsavoury ones, with many of us trying to stop them in their tracks. However as off-putting as it might be, our dogs are usually just carrying out very instinctive animal behaviours. Dogs are dogs at the end of the day. They have gelled well with human domestic life, but they are still animals. Understanding why they carry out particular behaviours will make it easier to know what is normal and what is not. It is also important to know when leaving them to get on with it is the best policy.
via Whisker Therapy