Leonberger

Leonbergers average roughly 7-9 years, which is short even by giant-breed standards. The limiting factors are cancer — especially osteosarcoma — and the cumulative orthopedic load of a 100-170 pound body, with inherited polyneuropathy affecting quality of life in some lines. Buying from DNA- and OFA-screened parents, keeping the dog lean, and controlling puppy growth help, but prospective owners should choose this breed fully accepting that they will likely lose a magnificent dog young.

Yes — gentleness with children is one of the breed's signature traits. Leonbergers are typically calm, patient, and tolerant, and they bond closely to the whole family rather than one person. The realistic caution is purely physical: a 130-pound dog can knock over a small child without any aggression simply by turning or leaning. Supervise interactions with toddlers, and teach the dog not to bump or lean. Temperament is excellent; the management issue is size, not character.

Moderate — about 45-60 minutes of daily walking plus space and, ideally, swimming, which they love and which spares the joints. They are calm rather than high-drive and do not need extreme exercise; in fact, over-exercising a growing puppy permanently harms its joints. Exercise in the cool part of the day, because the heavy double coat causes them to overheat easily. Mental engagement and being included in family life matter as much to a Leonberger as the physical activity.

Yes to both, and prospective owners should plan for it. The heavy double coat sheds year-round and "blows" dramatically twice a year, requiring thorough brushing 2-3 times weekly and daily during the seasonal shed. They are also a drooling breed, though usually less extreme than a Saint Bernard or Mastiff. If a hair-free, drool-free house is important to you, the Leonberger's otherwise wonderful temperament will not compensate — this is a high-maintenance coat in a large package.

Reasonably — they are intelligent, people-pleasing, and sensitive, responding well to calm, consistent, positive methods and poorly to harsh handling. The practical issue is not willingness but size and maturity: a slow-maturing giant must learn manners, leash skills, and not to jump or lean before it is large, because correcting a 130-pound adult is far harder than shaping a puppy. Early socialization and obedience are essential, and they are best treated as a long, patient project.

Purchase price from a health-testing breeder is typically around $2,000-$4,000. The ongoing cost is where giant breeds surprise owners: food can run $100-$200+ a month, and everything dosed or sized by weight — medications, anesthesia, joint care, surgery — costs more. Add likely orthopedic and cancer-related veterinary expenses given the breed's risks. Budget realistically for giant-breed food and a substantial vet fund, and consider early pet insurance before any signs appear.