The reasons why dogs have to poop in circles and smell the ground:

1. Dogs poop in circles and sniff everywhere, which means that the current poop environment is not so satisfactory to dogs, but at the same time it is urgent. If there is suitable air, a strong earthy smell, a relatively dry place to defecate, and a shelter nearby, the dog will no longer circle around and sniff everywhere.

2. This is the smell that the dog excretes before looking for itself. Make sure there is no smell of other animals here, so that it can excrete with peace of mind and leave its own smell.

3. Some dogs love to be clean, so they circle in circles and sniff everywhere before defecating in order to flatten the weeds or shrubs under their feet to prevent the poop from getting on their bodies.

4. The dog will circle around and smell everywhere when defecating. It may be a physiological habit, just like the dog will scratch backwards with its hind legs every time after defecating. Actions.