Descendant of the wolf, the dog appeared about 100,000 years ago , according to recent genetic analyzes. Since then, man has bred and selected varieties of this animal for different purposes. In some places, small specimens were selected for hunting foxes and rabbits, for example, while in others it was necessary to have large dogs to guard the herds from the attack of wolves.
Today, many breeds of dog obey mere aesthetic criteria. In one way or another, the reality is that there are currently 450 breeds of these companion animals, according to the International Canine Federation.
