Two dogs meet.
They barely acknowledge the humans holding the leashes.
Then both head straight for what looks like the least polite greeting imaginable.
For dogs, it makes perfect sense.
Dogs live in a world rich with scent
A dog’s nose can detect information humans barely notice.
Scent is one of the main ways dogs investigate places, objects, food, and other animals.
That is why a dog’s first question about the world is often answered with its nose.
The rear area contains concentrated scent information
Near a dog’s anus are scent-producing glands.
Those glands release chemicals unique to the animal.
Another dog can detect those chemicals with its highly sensitive nose.
What can the scent reveal?
According to the recorded explanation, the odor may provide clues about:
- Identity
- Sex
- Reproductive status
- Diet
- Health
- Recent activity
That is an enormous amount of information from one quick sniff.
Why this particular location?
Useful scent information is especially concentrated there.
For a species that depends heavily on smell, investigating that region is efficient.
Humans rely heavily on faces and speech during introductions.
Dogs use scent.
Different species.
Different networking event.
Is this connected with dogs kicking the ground after pooping?
Yes, broadly.
Dogs may kick the ground after pooping partly as a way of spreading scent information.
Both behaviors show how important chemical communication is in canine social life.
Are dogs trying to be rude?
No.
Human social rules do not apply to dog greetings.
The dog is gathering information in the way dogs naturally do.
What looks awkward to us is ordinary communication to them.
So when two dogs meet and immediately head for the least polite possible greeting, they are not trying to embarrass you.
They are exchanging information.
And that’s the short explanation.
Related explanations: Why do dogs kick the ground after pooping?, Why do dogs wag their tails?, and Why do dogs tilt their heads?