The dog has long and tightly taken its place beside the man. She is an incorruptible "guard", a loyal friend, a reliable helper and a caring companion. Everyone knows that a dog is the first wild animal curbed by man. There are about 80 similar chromosomes in digs` and wolfs` DNA. It has long been known that dogs are color-blind because that they have no cones on the eye retina, which responsible for the sense of the red and orange spectrum. But dogs are better distinguishing all shades of grey than we are. Dogs` Hearing is much thin than humans. The pet can to distinguish sounds with a rate of up to 40 kHz (ultrasound), while the human have limit is 20 kHz. A dog's wet nose is the main tool for finding food, a partner, and social behavior. They regulate body temperature by means of the tongue. Man and dog are associated at the genetic level. This is expressed not only in the fact that we have a lot of common genes, but also in the perception of dogs verbal signals given by people. It has long been noticed that with time, dogs and their owners become similar not only in character, but in also getting an external similarity.
Dogs are one of the best Pets for man that will never stop loving them. For this reason, we offer to you in online store stamps-world.eu draw your attention to Stamps Dogs in the categories Stamps Fauna and Stamps Pets. In these categories, you can buy Stamps Dogs and all Topical Stamps of Dogs on postage stamps of the world. In Stamps Dogs, you will find not only your favorite Dogs` species, but also discover new and interesting species without getting up from the sofa.