Dog Butt Sniffing — Your Dog’s First Step In Making Friends

Studies show that an average dog’s nose is about 10,000 to 100,000 times more sensitive than your nose. Your pooch have that super sense of smell and yet it is quite interesting to know why your dog is very much more inclined to sniff other dogs’ behinds despite the smell of other things in the surrounding.
http://howtopamperyourpet.jimdo.com/2015/04/07/dog-butt-sniffing-your-dog-s-first-step-in-making-friends/