For years I found it annoying to walk my dog. All she ever wanted to do was sniff the grass and trees upon which other dogs had left their scent. Neither of us got much exercise. It was like tug-of-war to get Snickers to move at all. One day, I saw an Instagram video in which a self-designated dog expert explained that dogs might need the sniffing more than the walking. Their brains light up when they sniff, and it can tire them out when they engage in vigorous sniffing. I had noticed how happy Snickers looked when sniffing, but my brain couldn’t connect the dots because sniffing dog urine
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