Do you know why dogs sniff each other's bu**ocks? The answer to that question is a bit more complex than you might imagine.A report from the American Chemical Society reveals that it's all about one canine literally sniffing out important information about the other to find out its gender, emotional state, diet, and more.
According to a video by the society, the glandular secretions released by glands in a dog's anal sac. "In fact, this butt-sniffing action is just one of many examples of chemical communication in the animal kingdom."
Of course, a dog's sense of smell is famously acute with 10,000 to 100,000 times more accurate than our own.
How can the sniffer make sense of the glandular secretions released by the sniffee's anal sac--without the poopy smell getting in the way? Dogs have a second olfactory system that's known as the Jacobson's organ. Its nerves direct the chemical information it detects directly to the brain so there's no interference from other smells .
Source: huffingtonpost.com
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