A dog is not only a man’s loyal friend, but also a protector and assistant in a variety of matters.
Dogs guard the home, they are able to find a lost item, detect drugs or pull an injured person out of a dangerous situation.
Therefore, not only character is valued in dogs, but also indicators of physical strength and endurance.

Which dog is the strongest in the world? The answer to this question is ambiguous: strength can mean completely different categories.
For example, some dog breeds are good at hunting wild animals, they are able to defeat a large wild animal in a fight, other dogs can pull heavy sleds through the snow for several hundred kilometers without rest, and still other species will protect their owner from attacks by intruders and guard his home without fear or fatigue.
Which breed is considered the strongest?
Usually, large dog breeds are considered strong: wolfhound, alabai, great dane, St. Bernard, mastiff. The dimensions of these friends of man are quite large, naturally, such massive sizes of dogs speak of their remarkable strength, but focusing only on the breed parameters of height and weight of the dog is wrong.
A striking example of this is the Siberian Laika, which is several times smaller than Great Danes and wolfhounds, but is capable of fighting a bear and pulling a sled with a load out of the snow.
The endurance and courage of the Laika is a special hidden strength of this breed; the Laika is a true friend and protector to its owner.
Fighting dog breeds are not particularly large either. Their strength is in their grip and agility. A small French bulldog, due to the strength of its jaws, can easily defeat a St. Bernard or Newfoundland in a fight.
We should not forget about service and decorative breeds, whose representatives are distinguished not only by their independent nature, but also by their very aggressive character.
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Examples of such breeds: boxer, doberman, dalmatian, chow chow, rottweiler. The strength of these dogs is in their fury and well-developed survival instinct.
When choosing a pet from these breeds, it is important to remember that these types of dogs must be educated and trained. Service and decorative dogs without proper training become overly aggressive and can attack people.
Guinness World Records
The strength of dogs listed in the Guinness Book of Records was measured by a unique test: the dog had to pull a particularly heavy load a certain distance. The winner of the test was a young St. Bernard named Raittes. The dog managed to pull a load weighing more than 2 tons a distance of five meters. Now this amazing animal is no longer alive, but the title of champion in strength still belongs to him.
The second dog to repeat Raittes' record was a female Newfoundland named Barbara. She managed to pull a 2.5-ton load the required distance. Amazingly, Barbara herself weighed only 44 kilograms!
English Mastiff and Tosa Inu
The English Mastiff is considered the largest breed of dog of all existing. The largest of the English Mastiffs is the male Zorbro, whose weight reached 156 kilograms. The average weight of any representative of this breed starts from 70 kilograms, the height at the withers is from 75 centimeters.
Mastiffs seem clumsy and funny - this is due to their huge size and kind, docile nature. But experienced dog breeders know that the mastiff is an impeccable guard and protector.
If the owner of a dog of this breed is in danger, the clumsy oaf will instantly turn into a deadly creature, one bite of which can be fatal.
The Tosa Inu is a variety of mastiff breed that is of Japanese origin.
Tosa Inu is a breed bred for guarding and participation in dog fights, therefore, the upbringing of Tosa Inu should be thorough, it is advisable to devote considerable time to training the animal.
The nature of this large dog is docile and good-natured, but only in relation to its own owners.
Tosa Inu get along well with children, but dog handlers do not recommend leaving such a huge dog with a small child without supervision. The size of the Tosa Inu is impressive: average weight - 85-90 kilograms, height - 60-70 centimeters.
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