Dear Joan: Why does my dog grass dive?
He's a minpin-dachshund cross, about 8-inches tall at the shoulder, and this behavior is really slowing down our walks because he often would like to stop every 25 yards or so.
While on leash as we stroll through the neighborhood, he lowers his head to sniff the grass -- usually 2 to 4 inches high -- along the sidewalk. Then, when he finds the "right spot," he moves a bit farther into the lawn, lowers the front legs while keeping the back ones extended so he can almost touch the ground with his nose and sometimes licks the grass -- dangerous behavior of course, in this era of heavy fertilizer and herbicide use.
Simultaneously, he uses the back feet to propel himself forward and, upon finding the next "right spot," turns his head left or right while lowering the back legs, and twists and wriggles his way though the grass for maybe 3 feet with his paws in the air. Could there be a snake somewhere in his ancestry?
Usually when almost finished, especially during pollen season, he sneezes.
The possible reasons that occur to me: so the sneezes will clear his nasal passages; to scratch his back, although the grass doesn't seem stiff enough for that; to "correct" his scent; to lick up any moisture remaining on the blades of grass from dew or irrigation, although he does have the opportunity to drink his fill of fresh water just before and after every walk; for the fun of it.
What do you think?
-- Bruce Manuel
Dear Bruce: Dogs do roll in the grass because it feels good, especially on hot days. The primary reason they do it, however, has to do with their ancestry, not as snakes but as wolves.
When a wolf comes across an unusual or different smell, it often will roll in it. Dogs do this, too. The reason is two-fold. One, by mixing a little of their scent on top of the new one, they're putting their mark on the spot. Secondly, they like to share the scent, so by rubbing it all over themselves, they can share it with the pack.