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Here I am yet again, haha!
Today I learned that dogs have as many as 300 million olfactory receptors in their noses that, among other things, give them their famously high sense of smell. One that's potent enough to function completely independently from a dog's breathing, allows them to instantly figure out the direction of a smell and pick out each and every element out of it, and even detect diseases like cancer and COVID-19 with a promisingly high degree of accuracy (if certain studies are to be trusted, anyway).
For comparison, humans have an average of only six million olfactory receptors, and the area of our brains that processes smell is 40 times smaller than that of the average dog!
Today I learned that dogs have as many as 300 million olfactory receptors in their noses that, among other things, give them their famously high sense of smell. One that's potent enough to function completely independently from a dog's breathing, allows them to instantly figure out the direction of a smell and pick out each and every element out of it, and even detect diseases like cancer and COVID-19 with a promisingly high degree of accuracy (if certain studies are to be trusted, anyway).
For comparison, humans have an average of only six million olfactory receptors, and the area of our brains that processes smell is 40 times smaller than that of the average dog!