• May 2, 2019

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.

Features of a Nose at Dogs

Unique body

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:

Unique Body of a Dog

  1. The right and left cavities of a nose are divided in addition still in two. Olfactory and respiratory functions do not interfere with each other as the animal takes a breath through nostrils, and exhaled — through side channels.
  2. the Nose and a mucous membrane of airways at a healthy individual are always moistened . Thanks to the different speed of filtration of molecules through slime there is primary "sorting" of the inhaled aromas.
  3. The set of the nervous terminations and receptors of several types helps to distinguish smells. By means of a magnetic resonance tomography researchers found out that separate groups of receptors have specialization. Therefore smells are distinguished in different sites of airways.
  4. Thanks to the expressed sensitivity of a mucous membrane of a nose the dog is capable not only to distinguish smells, but also to define the direction of the movement of their source .

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.

of the Dog on service

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.

Dogs with Ease Catch Smells

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.

Related Articles