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When the ordinary person learns 5 little-known facts about a nose of a dog, as a rule, the first reaction - it is surprise. Pets inherited ability to catch the necessary smell among a great number of others from the ancestors. Also their wild relatives — wolves who even under a meter snow layer can guess a hunting trap have the same potential.
It would seem, the person cultivated a dog so long ago that has to know about her already everything. Nevertheless scientists continue to investigate this animal by means of modern technologies and learn new features of physiology of dogs:
At solar burns, continuous contacts with the soil or not absolutely quality plastic ware color of a nose can change if at a dog from the birth it has pale coloring.
Thanks to anatomic and physiological features of an organ of smell dogs have the fantastic abilities many times surpassing possibilities of people. Dogs with ease catch smells which the person does not feel.
Sensitivity of olfactory receptors at the barking assistants in 10,000, and at times and 100,000 times above, than at people.
Therefore dogs are irreplaceable when carrying out search, search and rescue operations, customs inspection and odorologichesky examination. Most often guard dogs become of a sheep-dog (German, Belgian) . However there is a work and for retrievers, beagles, spaniels. And here at selection on a smell which is carried out at odorologichesky examination the highest rates are shown by the hybrid posterity received from a laika and a jackal.