Dogs do not just detect odors better than we can. This sniffing “gaze” also gives them a very different experience of the world than our visual one gives us. One of Horowitz’s most startling insights, for me, was how even a dog’s sense of time differs from ours. For dogs, “smell tells time,” she writes. “Perspective, scale and distance are, after a fashion, in olfaction — but olfaction is fleeting. . . . Odors are less strong over time, so strength indicates newness; weakness, age. The future is smelled on the breeze that brings air from the place you’re headed.” While we mainly look at the present, the dog’s “olfactory window” onto the present is wider than our visual window, “including not just the scene currently happening, but also a snatch of the just-happened and the up-ahead. The present has a shadow of the past and a ring of the future about it.”
Read all the review here. I'd love to know what the dogs know, just for a few minutes.