What does circling most likely do for a dog?

Flattens an uneven spot into a comfortable bed

Shows other dogs who is in charge

Why do dogs often dig shallow holes outside on hot days?

The soil a few inches down is cooler than the air

Lying down, getting right back up and circling again

Curling up with the tail over the nose

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In Stanley Coren's test with 62 dogs, how many circled before lying on a thick shag carpet?

Only about 19 percent circled on a smooth floor.
What does circling most likely do for a dog?

Wild canines press down grass, leaves or snow the same way.
Why do dogs often dig shallow holes outside on hot days?

Thick-coated breeds like Huskies and Malamutes are known for it.
Where on a dog's body are sweat glands that may leave scent on its bed?

Scratching rubs a little of that scent onto the fabric.
About how many days after breeding do dogs usually give birth?

Pregnant dogs often dig and scratch to build a nest in the last days before labor.
The 2013 magnetic field study watched dogs doing what?

Dogs tended to face north or south when the field was calm. The study did not look at lying down.
Which can be a sign of pain when a dog lies down?

Arthritis in the hips, knees or back is a common cause.
Circling in one direction with stumbling and flicking eyes can point to which condition?

It affects the balance system and needs a vet visit the same day.