Dog And The Child

Boxers are commonly used as service dogs for blind people because their intelligence and alert expression. During war time, this type dog was also used as a courier. Dobermans have proven themselves as great learners with an amazing capacity retaining training and as a result they are commonly trained and used as police or war dogs. Some other types breeds are easily trained for hunting or fighting such as the Dogue de Bordeaux.
The domestic dog has a predisposition to exhibit a social intelligence that is uncommon in the animal world. Dogs are capable learning in a number ways, such as through simple reinforcement (e.g. classical or operant conditioning) and by observation.
Dogs go through a series stages cognitive development. As with humans, the understanding that objects not being actively perceived still remain in existence (called object permanence) is not present at birth. It develops as the young dog learns to interact intentionally with objects around it, at roughly 8 weeks age.