What do you reckon the evolutionary advantage to that is? Maybe some sort of olfactory protective coloring?
Like people that sniff wine, dogs have a sophisticated palate. Perhaps it goes with their heightened sense of smell. They can fingerprint another dog by smelling it’s backside and remember that for life. The ability to smell allows them to find their companion (I prefer not to use the term owner) or home. They also know when dinner is ready. Very important in a dog’s life.
To quote:
They possess up to 300 million olfactory receptors in their noses, compared to about six million in us. And the part of a dog’s brain that is devoted to analyzing smells is, proportionally speaking, 40 times greater than ours. Dogs’ noses also function quite differently than our own.
They like to roll in smelly things as well. It helps mask their scent from other animals. Hunters do this with pheromone products to attract game.
Then there are fancy scents that people wear.....
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