Wolves as pets and working animals
Though wolves are trainable, they lack the same degree of tractability seen in dogs. They are generally not as responsive as dogs to coercive techniques involving fear, aversion to stimuli, and force. Generally, far more work is required to obtain the same degree of reliability seen in most dogs. Even then, once a certain behavior has been repeated several times, wolves may get bored and ignore subsequent commands. Wolves are most responsive toward positive conditioning and rewards, though simple praise is not sufficient as in most dogs. Unlike dogs, wolves tend to respond more to hand signals than voice. Although they are more difficult to control than dogs, they can be easier to teach if the motivation exists.
Wolves are less suitable than dogs for working. Swedish wolf biologist Erik Zimen once tried to form a dog sled team composed entirely of wolves. The experiment failed as the wolves ignored most commands and were far more prone to fighting than sled dogs. North American wolves and wolf hybrids were used as experimental attack dogs by the South African Defence Force in Apartheid South Africa in an attempt to breed animals capable of tracking guerrillas. Because the wolves would not follow even basic commands, the experiment was abandoned. However, their sense of smell can rival that of established scent hounds. According to reports published in 2006, ongoing research at the Perm Institute of Internal Troops in Russia demonstrated that wolf/dog cross-breeds took 15–20 seconds to track down a target in training sessions, whereas ordinary police dogs took 3–4 minutes. Their success has led to plans to use them as police dogs for the Russian police.
Great Pyrenees
"The dog is essential for those who raise animals for wool. It is the guardian of livestock in general but is the natural defender of the sheep and goats. The wolf lurks constantly and we oppose it with the dogs"... "As for its appearance, choose those who are well-trained, large size, with black or red eyes, the nose of the same color, red lips pulling to black, not too collected, nor too pendants"... "It is equally essential that the dogs have strong head, long, floppy ears, wide and short neck, thighs and rights more inwardly turned than out, wide legs, fingers apart, hard nails and bent, spine nor projection nor convex, bushy tail, sonorous voice, good match muzzle and preferably with white hair so that it can be easily distinguished from wild animals at night."
One of the first descriptions of the breed dates from 1407, Fray Miguel Agustín, "prior" of the Temple who lived between 1560 and 1630, published in 1617 in Catalan (the first edition appeared in Spanish in 1622) , a book which he called "Libro de los secretos de la agricultura, casa de campo y pastoril". It gives the reasons why shepherds prefer white puppies, excluding those born with spots of dark color. Relates the friar: "The wool cattle dogs should not must be so big or so heavy as those of the guard of the house, but strong and sturdy, lightweight and ready to combat and fight and for run, because they have to make saves and guard against wolves and hunt them down if those take a cattle... These should be white so that the shepherd can easily see when these run after the wolf and know them in the evening and the morning."