This TED Talk Explains Why Your Dog’s Nose Is More Intelligent Than You Ever Imagined.
Does your dog seem to have a knack for locating every discarded chicken bone or pizza crust in the neighborhood when you take him for a walk? Does his preoccupation with sniffing around the house make you feel paranoid that perhaps there might be something rotting in the walls? Or perhaps you wonder why your dog barks at the door when no one is there, only to have a neighbor show up a few minutes later?
Most dog owners have experienced one or all of the above scenarios, and if you have, you might have been left scratching your head. This fascinating video explains it all.
As mentioned in the video, dog's noses have over 200 million scent sensitive cells, and you only have about 10 million - Talk about "seeing with your nose!" No wonder he always seems to know exactly when the pizza delivery man will be arriving.
The best thing that you can do for your canine companion is to take him out and let him sniff around: Dogs delight in the smells of the world, and their mood elevates with every welcome whiff. Just keep them away from the neighbor's trash- even though that's probably his favorite.