Читать книгу The Golden Rules of Positive Puppy Training - Jean Cuvelier - Страница 23

At birth, a puppy has 39 pairs of chromosomes and approximately 20,000 genes; half of them are inherited from his father and half from his mother. Some of these genes affect brain development, particularly the ability of neurons to interconnect. The impact of these genes on the dog’s personality is undeniable; however, if a dog, even one born with an excellent learning capacity, lives in an environment with limited stimuli, he cannot achieve much.