Dog days of winter

DOGS RUN in the snow on Hyalite Canyon south of Bozeman, Mont. “If it is below zero, you might want to really think about being outside with your dog,” said Dr. Spencer Anderson of Baxter Creek Veterinary Clinic in Bozeman, Mont.

BOZEMAN, Mont. — On a recent cross-country ski trip in the Bridger Mountains, I noticed my dog was walking a little funny. It was a frigid day and close to a foot of snow had fallen the night before. Kato, who burst out of his kennel with his usual exuberance at the car park, was looking chilly on the trail.

At first, Kato — a 9-year-old mixed breed cattle dog — was pausing to chew the snowballs out from between his pads. I’d seen him do this plenty of times in the past and thought little of it, but then he began to sit down, and finally he started to seek out spots beneath the trees that weren’t snow covered.