Masking Their Scent
Dogs’ noses are far more sensitive than those of humans. While we might only smell grass, they pick up the scents of the environment, other humans, and other animals.
Marking Their Territory
Rolling in the grass to leave their scent can be a way of telling other dogs that this territory belongs to them.
It Feels Good
Observe the way your dog rolls in the grass to understand if it feels good for them. A slow, relaxed roll with legs kicking around in the air shows that your pet is happy.
Expressing Their Personality
Just like some humans choose to wear bold-colored clothes to make a statement, dogs use their behavior to express their unique character.
Getting Rid of Objects in Their Fur
There can also be a practical reason for your dog to roll in the grass. Often it helps them to get rid of something on their back.