5. Alaskan Malamutes
Playful and greatly independent, Alaskan Malamutes is one among the difficult breed to keep and train. They love being engaged at all times and can turn to mischief if bored. Their outstanding character over other breeds is their preying desire and therefore they are known to constantly attack smaller animals that are likely to turn into prey. As such, it is important to ensure the dog is kept in a busy environment which makes the Alaskan Malamutes the most ideal choice for carting, mushing and skijoring. Owing to their impatient character, they are hard to train and require professional assistance if the dog is required for adoption as a pet.
4. German Shepherd
The German Shepherd is one of the most sought after breeds all over the globe. With its origins in German, the breed is credited for its outstanding characters that include confidence, vigilance, intelligence, alertness and fearlessness. They are common in police forces across the globe owing to their ease in training and good performance. If not properly trained it is one among the most dangerous dog breeds known. It easily turns rebellious and attacks easily when provoked. However when properly trained it is the best human friend who offers the best that every dog lover requires.