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The first thing that stands out in a Pyrenean mastiff is his imposing presence. It is often confused with other breeds of similar type as the Spanish Mastiff, the Great Pyrenees or St. Bernard, all of them are similar in terms of its size but all are different.

It’s a dog of great height, muscular and robust, which is characterized by its extraordinary strength, but despite its huge size they are not clumsy and they moves with agility.
Pyrenean Mastiff Arbaniés de Reis D'Aragon
Arbaniés de Reis D'Aragón photographed by Vanessa Grossemy for Canis Reporting
Photography courtesy of its owner: Vanil des Artses
They are very well balanced, have a wide thorax and a large and strong head, strong neck surrounded by thick, elastic skin, skeleton compact and strong, thick legs, seen in profile, their structure is rectangular. The eyes are small, dark and expressive looking.

Their coat is dense, thick and moderately long, usually white color with spots, wel-defined mask and spotted ears that hang to the sides.

These specimens are rather quiet and rarely bark, when they do their bark is serious and deep.
The Pyrenean Mastiff character conquers the hearts of all people with whom they live, is a balanced dog, of great nobility and kindness towards his people, a faithful companion, loving and intelligent, as well as brave because he never goes back from danger.

They coexist well with other animals. With children they are very good and protective, but supervision is required as given its large size, unintentionally, they can injure or knock over the child.
Pyrenean Mastiff puppy playing
The puppy Aragüés, aged 6 months old, playing with his companion cocker
Pyrenean Mastiff with cat
Pyrenean Mastiff coexistence
Photo: Estela Miguel
French Bulldog from Westlife Kennel
Although they prefer cold climates are very adaptable, can tolerate hot weather if they have enough shade to take refuge and fresh water at all times.

The Pyrenean Mastiff is a breed native from Aragon for centuries was used to protect livestock, property and persons in the Pyrenees Aragonese and Navarro. Their morphological characteristics and personality are suited to the role of guarding against predators and thieves that they should play.

For this function, dogs were needed with sufficient physical strength to face a fight against formidable opponents, only his impressive physique is a factor deterrent. They should be hardy and resistant to withstand large movements of transhumance, the harsh conditions of high mountain area the Pyrenees are and its extreme climate.
Old photograph of a mastiff
Vintage photograph courtesy of Rafael Malo Alcrudo
Psychologically they should be brave while sweet with the shepherds, the flock or the other dogs. They should not be overly aggressive but quiet so as not to leave the flock in search of the slightest sign of danger.

His sense of propriety and his instinct to defend what they consider theirs led them to protect their masters and their possessions as their own.

They also have played other functions, their instinct to walk through the Pyrenean sites served to drive the herd by firm ground, it was said that where passed a mastiff one could be sure not to take any chances, besides the company they kept for the lonely pastors while they were isolated from inhabited places.
Because all these characteristics the Pyrenean Mastiffs were and are perfect pets, guard dogs and livestock guardian dogs.
Pyrenean Mastiff Arbaniés de Reis D'Aragon
Arbaniés de Reis D'Aragón photographed by Vanessa Grossemy for Canis Reporting
Photography courtesy of its owner: Vanil des Artses
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