For all their lives the dogs are curious and always ready to lap up the smells. They never tire of adding and updating records into their smell’s database. But unlike us. We are most clumsy in forgetting and making use of databases. At workplace, we start making database only when lots of data is generated over the years and lies scattered lies here and there. Dogs on the other hand, make best use of this repertoire. You can always find them smelling, smelling and smelling. They rely on the database of smells for conducting their lives.
If a dog has once taken your smell, it will never forget you even after you return from outside after months.
In fact if a dog is not curious about smells, it is quite true that it is not well.