Newfoundlands ('Newfs' or 'Newfies') have webbed feet and a water-resistant coat. Males weigh 60–70 kg (130-150 lb), and females 45–55 kg (120-140 lb), placing them in the "Giant" weight range. Some Newfoundland dogs have been known to weigh over 90 kg (200 lb). The largest Newfoundland on record weighed 120 kg (260lbs) and measured over 6 feet from nose to tail, ranking it among the biggest Mastiffs and St. Bernards. They may grow up to 22-28 inches tall at the shoulder.
Temperament:
The Newfoundland dog is legendarily known for its benevolence and strength. It is known to be one of the kindest and gentlest dogs, if not the very best and gentlest dog of all when it comes to children. It is for this reason that this breed is known as "the gentle giant". The Newfoundland is a dog with an outstanding temperament, good, courageous, generous and intelligent. A patient dog, mild with guests, and obedient with its master. He is noble, calm, gentle, loyal and trustworthy with a sweet temperament. Dignified and peaceable. Very devoted. Good and brave.
Intelligent enough to act on his own when needed. Protective, but tends to place himself between the intruder and his family rather than bark or growl. Newfoundlands can recognize a dangerous situation and will generally act if the family is threatened. Any dog, other animal, child, or visitor who has no evil intention will receive a friendly welcome. International kennel clubs generally describe the breed as having a sweet temper. They have deep barks, are easy to train, are fine guardians and watchdogs, and are extremely good with children.
The Newfoundland dog is also extremely good with other animals. Its caring and gentle nature comes out in play and interaction with both humans and animals alike. As with any breed, Newfoundland dogs can have dominance issues, but this is unusual for the breed. "Sweetness of temperament is the hallmark of the Newfoundland; this is the most important single characteristic of the breed."
There are several health problems associated with Newfoundlands. Newfoundlands are prone to hip dysplasia (a malformed ball and socket in the hip joint), Elbow dysplasia, and cystinuria (a hereditary defect that forms calculi stones in the bladder). Another genetic problem is subvalvular aortic stenosis, also referred to as subaortic stenosis or SAS. This is a common heart defect in Newfoundlands involving defective heart valves. SAS can cause sudden death at an early age.
