Anyone with a four-legged friend will have probably wondered why the dog’s nose is so cold: a new scientific discovery provides the explanation.
It seems that this time we are serious: scientists could have revealed one of the greatest mysteries concerning the most faithful four-legged friend that a human being could wish for! In a scientific study published by the authoritative Scientific Reports the answer to would finally be contained one of the most common questions about Fido: why is the dog’s nose so cold?
Until now, the most widespread belief was that the dog’s cold nose had to do with the particular body temperature regulation mechanism typical of these animals: apparently, however, the reality would be another and would be connected to the ability of Fido’s nose to detect the presence of heat sources even from a distance.
The dog’s nose is always cold: the reason is incredible
The scientific study, conducted by a group of Swedish and Hungarian researchers, shed light on the mystery of frozen truffles giving an amazing explanation to say the least: thanks to their cold nose, dogs can detect even very weak sources of heat up to a meter away. A very useful mechanism for identifying, for example, small mammals in the vicinity.
From the results of the analyzes conducted, the scientists found that the tip of a dog’s nose maintains a different temperature than the external temperature detected in the environment: if outside there are 30 ° C, for example, Fido’s nose will be at least 5 ° C cooler. When the outside temperature is very cold, for example at 0 ° C, the dog’s nose will have a temperature of about 8 ° C.
Here, by observing these differences, the researchers understood that the temperature of the truffle had a very specific sensory function: therefore, they decided to carry out specific tests studying the reactions of the three dogs Kevin, Charlie and Delfi to some very precise exercises for identifying objects.
Dogs, trained ad hoc, were asked to identify which of two identical objects in shape and size had been heated up to a temperature of about 12 ° C higher than the outside temperature: all three were able to detect sensory stimuli from temperature. The curious thing is that in all cases the heat emitted by objects was too weak to be felt by human hands.