19. Saint Bernard
With a height of up to 35 inches and a weight of 120 kg, Saint Bernards are known as giant dogs.
The St Bernard dog breed which originated in the Swiss and Italian Alps, frequently assisted in rescue missions. While Saint Bernards have a calm temperament, they still require regular exercise and mental stimulation to stay healthy and happy.
They enjoy activities such as hiking, walking, and playing, but they are also content to lounge around the house with their loved ones.