Weird Dog Habits, Explained: Grass, Howling, Digging and Spinning

Dogs are wonderfully weird. They snack on lawns, sing along with ambulances, excavate the backyard and pirouette before every nap. None of it is random. Here's the science behind the strangest stuff your dog does.

Grazing like a tiny cow

Watching your dog munch grass can feel alarming, but for most dogs it's completely normal. The old myth says dogs eat grass to make themselves throw up when their stomach is off. Research tells a different story: fewer than 25% of grass-eating dogs vomit afterward, and most weren't visibly sick beforehand. Your dog usually isn't self-medicating.

So why do it? Probably a mix of instinct, boredom, taste and curiosity. Wild ancestors ate plant matter from the stomachs of their prey, and fresh grass offers fiber and a satisfying crunch. Some dogs just love the flavor of new spring shoots.

The grass itself is harmless. The real risks are what's on it: pesticides, herbicides, fertilizers and chemically treated lawns, plus parasites from the soil. Occasional grazing on clean, untreated grass is fine. But sudden, frantic grass-eating paired with vomiting, lethargy or appetite changes deserves a call to your vet.

The wolf song in your living room

That spine-tingling howl is one of the oldest forms of communication your dog inherited from wolves. In the wild, wolves howl to find pack members across miles of forest, mark territory and coordinate before a hunt. A howl carries much farther than a bark, up to several kilometers.

At home, most howling falls into a few buckets: answering a trigger sound (sirens, music, another dog), loneliness or separation distress, or a bid for your attention because it worked last time. When a siren sets your dog off, it may be treating it as another howl and answering the call. It's social, not a complaint. Huskies, Beagles and Malamutes are famously vocal because their genetics sit closer to that ancestral wolf line.

Occasional howling is normal and healthy. Sudden, frequent or distressed howling, especially when you leave, can signal separation anxiety worth raising with your vet.

The backyard excavation crew

Digging is one of the most natural instincts a dog has. Terriers and Dachshunds were literally bred to dig prey out of burrows. Other dogs dig to cool off in summer (loose soil is cooler), to bury treasures, to escape a boring yard or to burn off pent-up energy and anxiety.

Punishment rarely works, because digging rewards itself. Give the instinct an approved outlet instead: a sandbox or loose-soil patch with toys and treats buried in it, so it becomes the most exciting spot in the yard. Add more exercise and enrichment, since a tired, mentally satisfied dog digs far less. Sudden obsessive digging, though, can signal stress or escape attempts worth looking into.

The pre-nap twirl (and other rituals)

Before dogs had beds, their wild ancestors slept in tall grass and underbrush. Circling two or three times trampled down a flat nest, scared off snakes and insects, and helped them face any approaching threat. Even on a memory-foam bed with nothing to flatten, the ritual fires automatically: the instinct outlived the need. If spinning suddenly becomes excessive, obsessive or comes with whining, it can signal pain, arthritis or neurological issues, so get a vet check.

A few more classics: those dramatic back-kicks after pooping spread scent from glands in the paws to mark territory. And following you to the bathroom? To your dog, that's vulnerable time, so it's standing guard. It's a sign of deep trust.

Did you know? Dogs seem to have a sixth sense for Earth's magnetic field. Research shows they prefer to line their bodies up along the north-south axis when they poop.

Your dog isn't weird. It's running ancient, beautifully doggy software. 🐾