Dogs are able to detect prey by their body temperature
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Many predatory animals to detect prey use multiple senses. for example , recognize potential victims, not only with eyes, but using a couple of temperature-sensitive pits on the head. Using your cool senses, the snakes can easily catch the infrared radiation, which emanates from virtually all warm-blooded animals. According to the results of Hungarian scientists conducted research in the same way other animals can feel and dogs.
According to a scientific journal , they use the sensitive patch of skin on the tip of the nose, known as . This sense organ is, in many mammals, but in dogs it is colder than all the others. Due to the low temperature linaria, dogs can easily detect infrared radiation from other animals and objects, because the temperature of its own receptor does not create the "thermal noise".
How sensitive a dog's nose?
To prove that dogs are able to sense the temperature of the surrounding objects with nose, Professor Anna Balint and colleagues from Hungary and Sweden conducted an experiment. They took two toys the size of about 10 inches, one of which was room temperature and the other heated to 12 degrees Celsius higher. The object was placed at a distance of about 1.5 metres from the dogs because it is considered that this distance is not too developed vision animal can not clearly see objects. The subjects there was only one way to recognize a toy, using sensitive heat receptors on the nose.
the Dog who found a warm toy
Since dogs were initially accustomed to bring used in experiment toys, they already knew what was required of them. In the course of scientific work, researchers noticed several times that subjects are faster to find and bring the same toy, which was warmer. It turns out that dogs, like rattlesnakes snakes and many other predators can "see" objects by their heat signature.
To verify this, the researchers conducted an additional experiment involving 13 dogs. However, they were placed in the MRI scanner, which allowed the scientists to monitor the brain activity of animals at the time of detection of a warm object. It turned out that in this short period of time in dogs is activated somatosensory cortex of the left hemisphere of the brain responsible for tactile sensation and perception of temperature. On cold objects the brains of the dogs so didn't react.
Rinari dogs
According to scientists, the same way prey can detect the wolves and other animals with the presence of cold urinaria. For example, it has been proven that the senses have some types , which is important to choose the best skin area on the body to obtain the most nutrients.
Generally, dogs are amazing animals, the mental faculties which can be compared with the intelligence of small children. If you want to know about the capabilities of our four-legged friends more, we recommend you to watch the documentary .
a Dog's nose was more complicated than previously thought.
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